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class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox"><tbody><tr><th colspan="2" class="infobox-above" style="background-color:lemonchiffon">Posterolateral tract</th></tr><tr><td colspan="2" class="infobox-image"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:Gray669.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Gray669.png/250px-Gray669.png" decoding="async" width="250" height="142" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Gray669.png/375px-Gray669.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Gray669.png/500px-Gray669.png 2x" data-file-width="600" data-file-height="340" /></a></span><div class="infobox-caption">Diagram showing a few of the connections of afferent (sensory) fibers of the posterior root with the efferent fibers from the ventral column and with the various long ascending fasciculi. (Lissauer's fasciculus visible in upper left.)</div></td></tr><tr><td colspan="2" class="infobox-image"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:Gray672.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/be/Gray672.png/250px-Gray672.png" decoding="async" width="250" height="170" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/be/Gray672.png/375px-Gray672.png 1.5x, //upload.wikimedia.org/wikipedia/commons/b/be/Gray672.png 2x" data-file-width="500" data-file-height="340" /></a></span><div class="infobox-caption">Diagram of the principal fasciculi of the <a href="/wiki/Spinal_cord" title="Spinal cord">spinal cord</a>. (Lissauer's fasciculus visible in upper right.)</div></td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #efefef">Details</th></tr><tr><th colspan="2" class="infobox-header" style="background-color: #efefef">Identifiers</th></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em"><a href="/wiki/Latin" title="Latin">Latin</a></th><td class="infobox-data"><i>tractus posterolateralis</i></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em"><a href="/wiki/NeuroNames" title="NeuroNames">NeuroNames</a></th><td class="infobox-data"><a rel="nofollow" class="external text" href="http://braininfo.rprc.washington.edu/centraldirectory.aspx?ID=782">782</a></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em"><a href="/wiki/NeuroLex" title="NeuroLex">NeuroLex</a> ID</th><td class="infobox-data"><a rel="nofollow" class="external text" href="http://uri.neuinfo.org/nif/nifstd/nlx_143969">nlx_143969</a></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em"><a href="/wiki/Terminologia_Anatomica" title="Terminologia Anatomica">TA98</a></th><td class="infobox-data"><a rel="nofollow" class="external text" href="https://ifaa.unifr.ch/Public/EntryPage/TA98%20Tree/Entity%20TA98%20EN/14.1.02.228%20Entity%20TA98%20EN.htm">A14.1.02.228</a></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em"><a href="/wiki/Terminologia_Anatomica" title="Terminologia Anatomica">TA2</a></th><td class="infobox-data"><a rel="nofollow" class="external text" href="https://ta2viewer.openanatomy.org/?id=6092">6092</a></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em"><a href="/wiki/Foundational_Model_of_Anatomy" title="Foundational Model of Anatomy">FMA</a></th><td class="infobox-data"><a rel="nofollow" class="external text" href="https://bioportal.bioontology.org/ontologies/FMA/?p=classes&conceptid=http%3A%2F%2Fpurl.org%2Fsig%2Font%2Ffma%2Ffma72616">72616</a></td></tr><tr><td colspan="2" class="infobox-below"><a href="/wiki/Anatomical_terms_of_neuroanatomy" title="Anatomical terms of neuroanatomy">Anatomical terms of neuroanatomy</a><div style="text-align: right;"><small class="noprint">[<a href="https://www.wikidata.org/wiki/Q7234269" class="extiw" title="d:Q7234269">edit on Wikidata</a>]</small></div></td></tr></tbody></table> <p>The <b>posterolateral tract</b> (<b>fasciculus of Lissauer</b>, <b>Lissauer's tract</b>, <b>tract of Lissauer</b>, <b>dorsolateral fasciculus</b>, <b>dorsolateral tract</b>, <b>zone of Lissauer</b>) is a small strand situated in relation to the tip of the <a href="/wiki/Posterior_column" class="mw-redirect" title="Posterior column">posterior column</a> close to the entrance of the <a href="/wiki/Posterior_nerve_roots" class="mw-redirect" title="Posterior nerve roots">posterior nerve roots</a>. It is present throughout the <a href="/wiki/Spinal_cord" title="Spinal cord">spinal cord</a>, and is most developed in the upper cervical regions. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Structure">Structure</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Posterolateral_tract&action=edit&section=1" title="Edit section: Structure"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-More_citations_needed plainlinks metadata ambox ambox-content ambox-Refimprove" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/File:Question_book-new.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article <b>needs additional citations for <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">verification</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Special:EditPage/Posterolateral_tract" title="Special:EditPage/Posterolateral tract">improve this article</a> by <a href="/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">adding citations to reliable sources</a>. Unsourced material may be challenged and removed.<br /><small><span class="plainlinks"><i>Find sources:</i> <a rel="nofollow" class="external text" href="https://www.google.com/search?as_eq=wikipedia&q=%22Posterolateral+tract%22">"Posterolateral tract"</a> – <a rel="nofollow" class="external text" href="https://www.google.com/search?tbm=nws&q=%22Posterolateral+tract%22+-wikipedia&tbs=ar:1">news</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?&q=%22Posterolateral+tract%22&tbs=bkt:s&tbm=bks">newspapers</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?tbs=bks:1&q=%22Posterolateral+tract%22+-wikipedia">books</a> <b>·</b> <a rel="nofollow" class="external text" href="https://scholar.google.com/scholar?q=%22Posterolateral+tract%22">scholar</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.jstor.org/action/doBasicSearch?Query=%22Posterolateral+tract%22&acc=on&wc=on">JSTOR</a></span></small></span> <span class="date-container"><i>(<span class="date">January 2013</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <p>The posterolateral tract contains centrally projecting <a href="/wiki/Axon" title="Axon">axons</a> from dorsal root <a href="/wiki/Ganglion_cell" title="Ganglion cell">ganglion cells</a> carrying peripheral pain and temperature information (location, intensity and quality). These axons enter the spinal column and penetrate the <a href="/wiki/Grey_matter" title="Grey matter">grey matter</a> of the dorsal horn, where they synapse on second-order neurons in either the <a href="/wiki/Substantia_gelatinosa_of_Rolando" title="Substantia gelatinosa of Rolando">substantia gelatinosa of Rolando</a> or the <a href="/wiki/Nucleus_proprius" class="mw-redirect" title="Nucleus proprius">nucleus proprius</a>. Those neurons project their axon to the anterolateral quadrant of the contralateral half of the spinal cord, where they give the <a href="/wiki/Spinothalamic_tract" title="Spinothalamic tract">spinothalamic tract</a>. The axons of second-order neurons ultimately synapse on neurons in the <a href="/wiki/Ventral_posterolateral_nucleus" title="Ventral posterolateral nucleus">ventral posterior lateral nucleus</a> (VPL) of the <a href="/wiki/Thalamus" title="Thalamus">thalamus</a> after coursing in the spinal <a href="/wiki/Lemniscus_(anatomy)" title="Lemniscus (anatomy)">lemniscus</a>. After this, the 3rd order neuron fibers traverse the internal capsule and the corona radiata, ultimately synapsing in the post central gyrus (<a href="/wiki/Somatosensory_system" title="Somatosensory system">somatosensory</a> cortex). The location of this synapse is dependent upon the somatotopic organisation of the somatosensory cortex, it can be estimated according to the position on the 'somatosensory homunculus' </p><p>The posterolateral tract consists of fine fibers which do not receive their myelin sheaths until toward the close of <a href="/wiki/Fetal" class="mw-redirect" title="Fetal">fetal</a> life. In addition it contains great numbers of fine non-myelinated fibers derived mostly from the <a href="/wiki/Dorsal_roots" class="mw-redirect" title="Dorsal roots">dorsal roots</a> but partly <a href="/wiki/Endogenous" class="mw-redirect" title="Endogenous">endogenous</a> in origin. </p><p>These fibers are intimately related to the <a href="/wiki/Substantia_gelatinosa" class="mw-redirect" title="Substantia gelatinosa">substantia gelatinosa</a><sup id="cite_ref-pmid10568867_1-0" class="reference"><a href="#cite_note-pmid10568867-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> which is probably their terminal nucleus. </p><p>The non-myelinated fibers ascend or descend for short distances not exceeding one or two segments, but most of them enter the substantia gelatinosa at or near the level of their origin. </p> <div class="mw-heading mw-heading2"><h2 id="Clinical_significance">Clinical significance</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Posterolateral_tract&action=edit&section=2" title="Edit section: Clinical significance"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>During a complete occlusion of the <a href="/wiki/Ventral_artery_of_the_spinal_cord" class="mw-redirect" title="Ventral artery of the spinal cord">ventral artery of the spinal cord</a>, it is the only tract spared along with the <a href="/wiki/Dorsal_column" class="mw-redirect" title="Dorsal column">dorsal columns</a>. The posterolateral spinal tracts are involved with neurological deficits seen in <a href="/wiki/Pernicious_anemia" title="Pernicious anemia">pernicious anemia</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Eponym">Eponym</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Posterolateral_tract&action=edit&section=3" title="Edit section: Eponym"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <i>tract of Lissauer</i> was named after German <a href="/wiki/Neurologist" class="mw-redirect" title="Neurologist">neurologist</a> <a href="/wiki/Heinrich_Lissauer" title="Heinrich Lissauer">Heinrich Lissauer</a> (1861-1891). </p> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Posterolateral_tract&action=edit&section=4" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><span class="noviewer" typeof="mw:File"><span><img alt="Public domain" src="//upload.wikimedia.org/wikipedia/en/thumb/6/62/PD-icon.svg/12px-PD-icon.svg.png" decoding="async" width="12" height="12" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/6/62/PD-icon.svg/18px-PD-icon.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/6/62/PD-icon.svg/24px-PD-icon.svg.png 2x" data-file-width="196" data-file-height="196" /></span></span> <i>This article incorporates text in the <a href="/wiki/Public_domain" title="Public domain">public domain</a> from <a rel="nofollow" class="external text" href="https://archive.org/stream/anatomyofhumanbo1918gray#page/762/mode/2up">page 762</a> of the 20th edition of</i> <a href="/wiki/Gray%27s_Anatomy" title="Gray's Anatomy">Gray's Anatomy</a> <i>(1918)</i> </p> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-pmid10568867-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid10568867_1-0">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFWallLidierthHillman1999" class="citation journal cs1">Wall PD, Lidierth M, Hillman P (December 1999). "Brief and prolonged effects of Lissauer tract stimulation on dorsal horn cells". <i>Pain</i>. <b>83</b> (3): 579–89. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2FS0304-3959%2899%2900170-0">10.1016/S0304-3959(99)00170-0</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/10568867">10568867</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:25597735">25597735</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Pain&rft.atitle=Brief+and+prolonged+effects+of+Lissauer+tract+stimulation+on+dorsal+horn+cells&rft.volume=83&rft.issue=3&rft.pages=579-89&rft.date=1999-12&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A25597735%23id-name%3DS2CID&rft_id=info%3Apmid%2F10568867&rft_id=info%3Adoi%2F10.1016%2FS0304-3959%2899%2900170-0&rft.aulast=Wall&rft.aufirst=PD&rft.au=Lidierth%2C+M&rft.au=Hillman%2C+P&rfr_id=info%3Asid%2Fen.wikipedia.org%3APosterolateral+tract" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Posterolateral_tract&action=edit&section=5" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" 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</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Anterior_grey_column" class="mw-redirect" title="Anterior grey column">Anterior grey column</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Interneuron" title="Interneuron">Interneuron</a></li> <li><a href="/wiki/Alpha_motor_neuron" title="Alpha motor neuron">Alpha motor neuron</a> <ul><li><a href="/wiki/Onuf%27s_nucleus" title="Onuf's nucleus">Onuf's nucleus</a></li></ul></li> <li><a href="/wiki/Gamma_motor_neuron" title="Gamma motor neuron">Gamma motor neuron</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Rexed_laminae" title="Rexed laminae">Rexed laminae</a></li> <li><a href="/wiki/Central_gelatinous_substance_of_spinal_cord" class="mw-redirect" title="Central gelatinous substance of spinal cord">Central gelatinous substance</a></li> <li><a href="/wiki/Gray_commissure" class="mw-redirect" title="Gray commissure">Gray commissure</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/White_matter" title="White matter">White matter</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Sensory</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Posterior_funiculus" class="mw-redirect" title="Posterior funiculus">Posterior</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Posterior_column-medial_lemniscus_pathway" class="mw-redirect" title="Posterior column-medial lemniscus pathway">Posterior column-medial lemniscus pathway</a></li> <li><a href="/wiki/Gracile_fasciculus" class="mw-redirect" title="Gracile fasciculus">Gracile</a></li> <li><a href="/wiki/Cuneate_fasciculus" class="mw-redirect" title="Cuneate fasciculus">Cuneate</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Lateral_funiculus" title="Lateral funiculus">Lateral</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Spinocerebellar_tract" class="mw-redirect" title="Spinocerebellar tract">Spinocerebellar</a> <ul><li><a href="/wiki/Dorsal_spinocerebellar_tract" class="mw-redirect" title="Dorsal spinocerebellar tract">dorsal</a></li> <li><a href="/wiki/Ventral_spinocerebellar_tract" class="mw-redirect" title="Ventral spinocerebellar tract">ventral</a></li></ul></li> <li><a href="/wiki/Spinothalamic_tract" title="Spinothalamic tract">Spinothalamic</a> <ul><li><a href="/wiki/Lateral_spinothalamic_tract" class="mw-redirect" title="Lateral spinothalamic tract">lateral</a></li> <li><a href="/wiki/Anterior_spinothalamic_tract" class="mw-redirect" title="Anterior spinothalamic tract">anterior</a></li></ul></li> <li><a class="mw-selflink selflink">Posterolateral</a></li> <li><a href="/wiki/Spinotectal_tract" class="mw-redirect" title="Spinotectal tract">Spinotectal</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Anterior_funiculus" title="Anterior funiculus">Anterior</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Spinoreticular_tract" title="Spinoreticular tract">Spinoreticular tract</a></li> <li><a href="/wiki/Spino-olivary_tract" title="Spino-olivary tract">Spino-olivary tract</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Motor</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Lateral_funiculus" title="Lateral funiculus">Lateral</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Pyramidal_tracts" title="Pyramidal tracts">Corticospinal</a> <ul><li><a href="/wiki/Lateral_corticospinal_tract" title="Lateral corticospinal tract">Lateral</a></li></ul></li> <li><a href="/wiki/Extrapyramidal_system" title="Extrapyramidal system">Extrapyramidal</a> <ul><li><a href="/wiki/Rubrospinal_tract" title="Rubrospinal tract">Rubrospinal</a></li> <li><a href="/wiki/Lateral_raphespinal_tract" class="mw-redirect" title="Lateral raphespinal tract">Raphespinal</a></li> <li><a href="/wiki/Reticular_formation#Descending_reticulospinal_tracts" title="Reticular formation">Reticulospinal</a></li> <li><a href="/wiki/Hypothalamospinal_tract" title="Hypothalamospinal tract">Hypothalamospinal</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Anterior_funiculus" title="Anterior funiculus">Anterior</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>Corticospinal <ul><li><a href="/wiki/Anterior_corticospinal_tract" title="Anterior corticospinal tract">Anterior</a></li></ul></li> <li>Extrapyramidal <ul><li><a href="/wiki/Vestibulospinal_tract" title="Vestibulospinal tract">Vestibulospinal</a></li> <li><a href="/wiki/Reticular_formation#Descending_reticulospinal_tracts" title="Reticular formation">Reticulospinal</a></li> <li><a href="/wiki/Tectospinal_tract" title="Tectospinal tract">Tectospinal</a></li> <li><a href="/wiki/Anterior_raphespinal_tract" class="mw-redirect" title="Anterior raphespinal tract">Raphespinal</a></li> <li><a href="/wiki/Olivospinal_tract" title="Olivospinal tract">Olivospinal</a></li></ul></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Both</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Anterior_white_commissure" title="Anterior white commissure">Anterior white commissure</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">External features</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>Ventral <ul><li><a href="/wiki/Anterior_median_fissure_of_spinal_cord" title="Anterior median fissure of spinal cord">Anterior median fissure</a></li> <li><a href="/wiki/Anterolateral_sulcus_of_spinal_cord" title="Anterolateral sulcus of spinal cord">Anterolateral sulcus</a></li></ul></li> <li>Dorsal <ul><li><a href="/wiki/Posterior_median_sulcus_of_spinal_cord" title="Posterior median sulcus of spinal cord">Posterior median sulcus</a></li> <li><a href="/wiki/Posterolateral_sulcus_of_spinal_cord" title="Posterolateral sulcus of spinal cord">Posterolateral sulcus</a></li></ul></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Brain_and_spinal_cord:_neural_tracts_and_fasciculi" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Neural_tracts" title="Template:Neural tracts"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Neural_tracts" title="Template talk:Neural tracts"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Neural_tracts" title="Special:EditPage/Template:Neural tracts"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Brain_and_spinal_cord:_neural_tracts_and_fasciculi" style="font-size:114%;margin:0 4em"><a href="/wiki/Human_brain" title="Human brain">Brain</a> and <a href="/wiki/Spinal_cord" title="Spinal cord">spinal cord</a>: <a href="/wiki/Neural_pathway" title="Neural pathway">neural tracts</a> and <a href="/wiki/Nerve_fascicle" title="Nerve fascicle">fasciculi</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Sensory</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Dorsal_column-medial_lemniscus_pathway" class="mw-redirect" title="Dorsal column-medial lemniscus pathway">DCML</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;background: transparent;"><a href="/wiki/Dorsal_column-medial_lemniscus_pathway#First_neuron" class="mw-redirect" title="Dorsal column-medial lemniscus pathway">1°</a>:</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lamellar_corpuscle" class="mw-redirect" title="Lamellar corpuscle">Pacinian corpuscle</a>/<a href="/wiki/Tactile_corpuscle" title="Tactile corpuscle">Meissner's corpuscle</a> → <b><a href="/wiki/Posterior_column" class="mw-redirect" title="Posterior column">Posterior column</a></b> (<a href="/wiki/Gracile_fasciculus" class="mw-redirect" title="Gracile fasciculus">Gracile fasciculus</a>/<a href="/wiki/Cuneate_fasciculus" class="mw-redirect" title="Cuneate fasciculus">Cuneate fasciculus</a>) → <a href="/wiki/Gracile_nucleus" class="mw-redirect" title="Gracile nucleus">Gracile nucleus</a>/<a href="/wiki/Cuneate_nucleus" class="mw-redirect" title="Cuneate nucleus">Cuneate nucleus</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background: transparent;"><a href="/wiki/Dorsal_column-medial_lemniscus_pathway#Second_neuron" class="mw-redirect" title="Dorsal column-medial lemniscus pathway">2°</a>:</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>→ <i><a href="/wiki/Sensory_decussation" title="Sensory decussation">sensory decussation</a>/arcuate fibers</i> (<a href="/wiki/Posterior_external_arcuate_fibers" class="mw-redirect" title="Posterior external arcuate fibers">Posterior external arcuate fibers</a>, <a href="/wiki/Internal_arcuate_fibers" title="Internal arcuate fibers">Internal arcuate fibers</a>) → <a href="/wiki/Medial_lemniscus" title="Medial lemniscus">Medial lemniscus</a>/<a href="/wiki/Trigeminal_lemniscus" title="Trigeminal lemniscus">Trigeminal lemniscus</a> → <a href="/wiki/Thalamus" title="Thalamus">Thalamus</a> (<a href="/wiki/Ventral_posterolateral_nucleus" title="Ventral posterolateral nucleus">VPL</a>, <a href="/wiki/Ventral_posteromedial_nucleus" title="Ventral posteromedial nucleus">VPM</a>)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background: transparent;"><a href="/wiki/Dorsal_column-medial_lemniscus_pathway#Third_neuron" class="mw-redirect" title="Dorsal column-medial lemniscus pathway">3°</a>:</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>→ <a href="/wiki/Posterior_limb_of_internal_capsule" class="mw-redirect" title="Posterior limb of internal capsule">Posterior limb of internal capsule</a> → <a href="/wiki/Postcentral_gyrus" title="Postcentral gyrus">Postcentral gyrus</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Anterolateral_system" class="mw-redirect" title="Anterolateral system">Anterolateral</a>/<br /><a href="/wiki/Pain" title="Pain">pain</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Nociception#Neospinothalamic_tract" title="Nociception">Fast</a>/lateral</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>1° (<a href="/wiki/Free_nerve_ending" title="Free nerve ending">Free nerve ending</a> → <a href="/wiki/A_delta_fiber" class="mw-redirect" title="A delta fiber">A delta fiber</a>) → 2° (<a href="/wiki/Anterior_white_commissure" title="Anterior white commissure">Anterior white commissure</a> → <b><a href="/wiki/Lateral_spinothalamic_tract" class="mw-redirect" title="Lateral spinothalamic tract">Lateral</a> and <a href="/wiki/Anterior_spinothalamic_tract" class="mw-redirect" title="Anterior spinothalamic tract">Anterior</a> <a href="/wiki/Spinothalamic_tract" title="Spinothalamic tract">Spinothalamic tract</a></b> → <a href="/wiki/Spinothalamic_tract" title="Spinothalamic tract">Spinal lemniscus</a> → <a href="/wiki/Ventral_posterolateral_nucleus" title="Ventral posterolateral nucleus">VPL</a> of <a href="/wiki/Thalamus" title="Thalamus">Thalamus</a>) → 3° (<a href="/wiki/Postcentral_gyrus" title="Postcentral gyrus">Postcentral gyrus</a>) → 4° (<a href="/wiki/Posterior_parietal_cortex" title="Posterior parietal cortex">Posterior parietal cortex</a>)</li></ul> <p>2° (<b><a href="/wiki/Spinomesencephalic_tract" class="mw-redirect" title="Spinomesencephalic tract">Spinomesencephalic tract</a></b> → <a href="/wiki/Superior_colliculus" title="Superior colliculus">Superior colliculus</a> of <a href="/wiki/Midbrain_tectum" class="mw-redirect" title="Midbrain tectum">Midbrain tectum</a>) </p> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Nociception#Paleospinothalamic_tract" title="Nociception">Slow</a>/medial</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>1° (<a href="/wiki/Group_C_nerve_fiber" title="Group C nerve fiber">Group C nerve fiber</a> → <b><a href="/wiki/Spinoreticular_tract" title="Spinoreticular tract">Spinoreticular tract</a></b> → <a href="/wiki/Reticular_formation" title="Reticular formation">Reticular formation</a>) → 2° (<a href="/wiki/Medial_dorsal_nucleus" title="Medial dorsal nucleus">MD</a> of <a href="/wiki/Thalamus" title="Thalamus">Thalamus</a>) → 3° (<a href="/wiki/Cingulate_cortex" title="Cingulate cortex">Cingulate cortex</a>)</li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Motor</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Pyramidal_tracts" title="Pyramidal tracts">Pyramidal</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i>flexion:</i> <a href="/wiki/Primary_motor_cortex" title="Primary motor cortex">Primary motor cortex</a> → <a href="/wiki/Posterior_limb_of_internal_capsule" class="mw-redirect" title="Posterior limb of internal capsule">Posterior limb of internal capsule</a> → <a href="/wiki/Decussation_of_pyramids" class="mw-redirect" title="Decussation of pyramids">Decussation of pyramids</a> → <b><a href="/wiki/Pyramidal_tracts" title="Pyramidal tracts">Corticospinal tract</a> (<a href="/wiki/Lateral_corticospinal_tract" title="Lateral corticospinal tract">Lateral</a>, <a href="/wiki/Anterior_corticospinal_tract" title="Anterior corticospinal tract">Anterior</a>)</b> → <a href="/wiki/Neuromuscular_junction" title="Neuromuscular junction">Neuromuscular junction</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Extrapyramidal_system" title="Extrapyramidal system">Extrapyramidal</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold"><i>flexion:</i></span></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Primary_motor_cortex" title="Primary motor cortex">Primary motor cortex</a> → <a href="/wiki/Genu_of_internal_capsule" class="mw-redirect" title="Genu of internal capsule">Genu of internal capsule</a> → <b><a href="/wiki/Corticobulbar_tract" title="Corticobulbar tract">Corticobulbar tract</a></b> → <a href="/wiki/Facial_motor_nucleus" title="Facial motor nucleus">Facial motor nucleus</a> → <a href="/wiki/Facial_muscles" title="Facial muscles">Facial muscles</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold"><i>flexion:</i></span></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Red_nucleus" title="Red nucleus">Red nucleus</a> → <b><a href="/wiki/Rubrospinal_tract" title="Rubrospinal tract">Rubrospinal tract</a></b></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold"><i>extension:</i></span></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Anatomy_of_the_cerebellum#Phylogenetic_and_functional_divisions" title="Anatomy of the cerebellum"> Vestibulocerebellum</a> → <a href="/wiki/Vestibular_nuclei" title="Vestibular nuclei">Vestibular nuclei</a> → <b><a href="/wiki/Vestibulospinal_tract" title="Vestibulospinal tract">Vestibulospinal tract</a></b></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold"><i>extension:</i></span></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Anatomy_of_the_cerebellum#Phylogenetic_and_functional_divisions" title="Anatomy of the cerebellum"> Vestibulocerebellum</a> → <a href="/wiki/Reticular_formation" title="Reticular formation">Reticular formation</a> → <b><a href="/wiki/Reticular_formation#Descending_reticulospinal_tracts" title="Reticular formation">Reticulospinal tract</a></b></li></ul> </div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Midbrain_tectum" class="mw-redirect" title="Midbrain tectum">Midbrain tectum</a> → <b><a href="/wiki/Tectospinal_tract" title="Tectospinal tract">Tectospinal tract</a></b> → muscles of neck</li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Basal_ganglia" title="Basal ganglia">Basal ganglia</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold"><a href="/wiki/Direct_pathway_of_movement" class="mw-redirect" title="Direct pathway of movement"><i>direct:</i></a></span></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">1° (<a href="/wiki/Motor_cortex" title="Motor cortex">Motor cortex</a> → <a href="/wiki/Striatum" title="Striatum">Striatum</a>) → 2° (<a href="/wiki/Medial_globus_pallidus" class="mw-redirect" title="Medial globus pallidus">GPi</a>) → 3° (<a href="/wiki/Lenticular_fasciculus" title="Lenticular fasciculus">Lenticular fasciculus</a>/<a href="/wiki/Ansa_lenticularis" title="Ansa lenticularis">Ansa lenticularis</a> → <a href="/wiki/Thalamic_fasciculus" title="Thalamic fasciculus">Thalamic fasciculus</a> → <a href="/wiki/Ventral_lateral_nucleus" title="Ventral lateral nucleus">VL</a> of <a href="/wiki/Thalamus" title="Thalamus">Thalamus</a>) → 4° (<a href="/wiki/Thalamocortical_radiations" title="Thalamocortical radiations">Thalamocortical radiations</a> → <a href="/wiki/Supplementary_motor_area" title="Supplementary motor area">Supplementary motor area</a>) → 5° (<a href="/wiki/Motor_cortex" title="Motor cortex">Motor cortex</a>)</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold"><a href="/wiki/Indirect_pathway_of_movement" class="mw-redirect" title="Indirect pathway of movement"><i>indirect:</i></a></span></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">1° (<a href="/wiki/Motor_cortex" title="Motor cortex">Motor cortex</a> → <a href="/wiki/Striatum" title="Striatum">Striatum</a>) → 2° (<a href="/wiki/Lateral_globus_pallidus" class="mw-redirect" title="Lateral globus pallidus">GPe</a>) → 3° (<a href="/wiki/Subthalamic_fasciculus" title="Subthalamic fasciculus">Subthalamic fasciculus</a> → <a href="/wiki/Subthalamic_nucleus" title="Subthalamic nucleus">Subthalamic nucleus</a>) → 4° (<a href="/wiki/Subthalamic_fasciculus" title="Subthalamic fasciculus">Subthalamic fasciculus</a> → <a href="/wiki/Medial_globus_pallidus" class="mw-redirect" title="Medial globus pallidus">GPi</a>) → 5° (<a href="/wiki/Lenticular_fasciculus" title="Lenticular fasciculus">Lenticular fasciculus</a>/<a href="/wiki/Ansa_lenticularis" title="Ansa lenticularis">Ansa lenticularis</a> → <a href="/wiki/Thalamic_fasciculus" title="Thalamic fasciculus">Thalamic fasciculus</a> → <a href="/wiki/Ventral_lateral_nucleus" title="Ventral lateral nucleus">VL</a> of <a href="/wiki/Thalamus" title="Thalamus">Thalamus</a>) → 6° (<a href="/wiki/Thalamocortical_radiations" title="Thalamocortical radiations">Thalamocortical radiations</a> → <a href="/wiki/Supplementary_motor_area" title="Supplementary motor area">Supplementary motor area</a>) → 7° (<a href="/wiki/Motor_cortex" title="Motor cortex">Motor cortex</a>)</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold"><i><a href="/wiki/Nigrostriatal_pathway" title="Nigrostriatal pathway">nigrostriatal pathway</a>:</i></span></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Substantia_nigra_pars_compacta" class="mw-redirect" title="Substantia nigra pars compacta">Pars compacta</a> → <a href="/wiki/Striatum" title="Striatum">Striatum</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Cerebellum" title="Cerebellum">Cerebellar</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Afferent</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Vestibular_nuclei" title="Vestibular nuclei">Vestibular nuclei</a> → <b><a href="/wiki/Vestibulocerebellar_tract" title="Vestibulocerebellar tract">Vestibulocerebellar tract</a></b> → <a href="/wiki/Inferior_cerebellar_peduncle" title="Inferior cerebellar peduncle">ICP</a> → <a href="/wiki/Cerebellum" title="Cerebellum">Cerebellum</a> → <a href="/wiki/Cerebellum_granule_cell" class="mw-redirect" title="Cerebellum granule cell">Granule cell</a></li></ul> <ul><li><a href="/wiki/Pontine_nuclei" title="Pontine nuclei">Pontine nuclei</a> → <b><a href="/wiki/Pontocerebellar_fibers" title="Pontocerebellar fibers">Pontocerebellar fibers</a></b> → <a href="/wiki/Middle_cerebellar_peduncle" title="Middle cerebellar peduncle">MCP</a> → <a href="/wiki/Deep_cerebellar_nuclei" title="Deep cerebellar nuclei">Deep cerebellar nuclei</a> → <a href="/wiki/Cerebellum_granule_cell" class="mw-redirect" title="Cerebellum granule cell">Granule cell</a></li></ul> <ul><li><a href="/wiki/Inferior_olivary_nucleus" title="Inferior olivary nucleus">Inferior olivary nucleus</a> → <b><a href="/wiki/Olivocerebellar_tract" title="Olivocerebellar tract">Olivocerebellar tract</a></b> → <a href="/wiki/Inferior_cerebellar_peduncle" title="Inferior cerebellar peduncle">ICP</a> → <a href="/wiki/Cerebellar_hemisphere" title="Cerebellar hemisphere">Hemisphere</a> → <a href="/wiki/Purkinje_cell" title="Purkinje cell">Purkinje cell</a> → <a href="/wiki/Deep_cerebellar_nuclei" title="Deep cerebellar nuclei">Deep cerebellar nuclei</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Efferent</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Dentate_nucleus" title="Dentate nucleus">Dentate nucleus</a> in <a href="/wiki/Cerebellar_hemisphere" title="Cerebellar hemisphere">Lateral hemisphere/pontocerebellum</a> → <a href="/wiki/Superior_cerebellar_peduncle" title="Superior cerebellar peduncle">SCP</a> → <b><a href="/wiki/Dentatothalamic_tract" title="Dentatothalamic tract">Dentatothalamic tract</a></b> → <a href="/wiki/Thalamus" title="Thalamus">Thalamus</a> (<a href="/wiki/Ventral_lateral_nucleus" title="Ventral lateral nucleus">VL</a>) → <a href="/wiki/Motor_cortex" title="Motor cortex">Motor cortex</a></li></ul> <ul><li><a href="/wiki/Interposed_nucleus" title="Interposed nucleus">Interposed nucleus</a> in <a href="/wiki/Cerebellar_hemisphere" title="Cerebellar hemisphere">Intermediate hemisphere/spinocerebellum</a> → <a href="/wiki/Superior_cerebellar_peduncle" title="Superior cerebellar peduncle">SCP</a> → <a href="/wiki/Reticular_formation" title="Reticular formation">Reticular formation</a>, or → <b><a href="/wiki/Cerebellothalamic_tract" title="Cerebellothalamic tract">Cerebellothalamic tract</a></b> → <a href="/wiki/Red_nucleus" title="Red nucleus">Red nucleus</a> → <a href="/wiki/Thalamus" title="Thalamus">Thalamus</a> (<a href="/wiki/Ventral_lateral_nucleus" title="Ventral lateral nucleus">VL</a>) → <a href="/wiki/Motor_cortex" title="Motor cortex">Motor cortex</a></li></ul> <ul><li><a href="/wiki/Fastigial_nucleus" title="Fastigial nucleus">Fastigial nucleus</a> in <a href="/wiki/Flocculonodular_lobe" title="Flocculonodular lobe">Flocculonodular lobe/vestibulocerebellum</a> → <b><a href="/wiki/Vestibulocerebellar_tract" title="Vestibulocerebellar tract">Vestibulocerebellar tract</a></b> → <a href="/wiki/Vestibular_nuclei" title="Vestibular nuclei">Vestibular nuclei</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Bidirectional:<br /><a href="/wiki/Spinocerebellar_tract" class="mw-redirect" title="Spinocerebellar tract">Spinocerebellar</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Proprioception#Conscious_and_unconscious_proprioception" title="Proprioception">Unconscious<br /> proprioception</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lower_limb" class="mw-redirect" title="Lower limb">lower limb</a> → 1° (<a href="/wiki/Muscle_spindle" title="Muscle spindle">muscle spindles</a> → <a href="/wiki/Dorsal_root_ganglion" title="Dorsal root ganglion">DRG</a>) → 2° (<a href="/wiki/Posterior_thoracic_nucleus" title="Posterior thoracic nucleus">Posterior thoracic nucleus</a> → <b><a href="/wiki/Dorsal_spinocerebellar_tract" class="mw-redirect" title="Dorsal spinocerebellar tract">Dorsal/posterior spinocerebellar tract</a></b> → <a href="/wiki/Inferior_cerebellar_peduncle" title="Inferior cerebellar peduncle">ICP</a> → <a href="/wiki/Cerebellar_vermis" title="Cerebellar vermis">Cerebellar vermis</a>)</li></ul> <ul><li><a href="/wiki/Upper_limb" title="Upper limb">upper limb</a> → 1° (<a href="/wiki/Muscle_spindle" title="Muscle spindle">muscle spindles</a> → <a href="/wiki/Dorsal_root_ganglion" title="Dorsal root ganglion">DRG</a>) → 2° (<a href="/wiki/Accessory_cuneate_nucleus" title="Accessory cuneate nucleus">Accessory cuneate nucleus</a> → <b><a href="/wiki/Posterior_external_arcuate_fibers" class="mw-redirect" title="Posterior external arcuate fibers">Cuneocerebellar tract</a></b> → <a href="/wiki/Inferior_cerebellar_peduncle" title="Inferior cerebellar peduncle">ICP</a> → <a href="/wiki/Anterior_lobe_of_cerebellum" title="Anterior lobe of cerebellum">Anterior lobe of cerebellum</a>)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Reflex_arc" title="Reflex arc">Reflex arc</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lower_limb" class="mw-redirect" title="Lower limb">lower limb</a> → 1° (<a href="/wiki/Golgi_tendon_organ" title="Golgi tendon organ">Golgi tendon organ</a>) → 2° (<b><a href="/wiki/Ventral_spinocerebellar_tract" class="mw-redirect" title="Ventral spinocerebellar tract">Ventral/anterior spinocerebellar tract</a></b>→ <a href="/wiki/Superior_cerebellar_peduncle" title="Superior cerebellar peduncle">SCP</a> → <a href="/wiki/Cerebellar_vermis" title="Cerebellar vermis">Cerebellar vermis</a>)</li></ul> <ul><li><a href="/wiki/Upper_limb" title="Upper limb">upper limb</a> → 1° (<a href="/wiki/Golgi_tendon_organ" title="Golgi tendon organ">Golgi tendon organ</a>) → 2° (<b><a href="/wiki/Rostral_spinocerebellar_tract" class="mw-redirect" title="Rostral spinocerebellar tract">Rostral spinocerebellar tract</a></b> → <a href="/wiki/Inferior_cerebellar_peduncle" title="Inferior cerebellar peduncle">ICP</a> → <a href="/wiki/Cerebellum" title="Cerebellum">Cerebellum</a>)</li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr></tbody></table></div> <style data-mw-deduplicate="TemplateStyles:r1130092004">.mw-parser-output .portal-bar{font-size:88%;font-weight:bold;display:flex;justify-content:center;align-items:baseline}.mw-parser-output .portal-bar-bordered{padding:0 2em;background-color:#fdfdfd;border:1px solid #a2a9b1;clear:both;margin:1em auto 0}.mw-parser-output .portal-bar-related{font-size:100%;justify-content:flex-start}.mw-parser-output .portal-bar-unbordered{padding:0 1.7em;margin-left:0}.mw-parser-output .portal-bar-header{margin:0 1em 0 0.5em;flex:0 0 auto;min-height:24px}.mw-parser-output .portal-bar-content{display:flex;flex-flow:row wrap;flex:0 1 auto;padding:0.15em 0;column-gap:1em;align-items:baseline;margin:0;list-style:none}.mw-parser-output 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