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class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/M%C3%BAscul_palmar_cutani" title="Múscul palmar cutani – Catalan" lang="ca" hreflang="ca" data-title="Múscul palmar cutani" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Musculus_palmaris_brevis" title="Musculus palmaris brevis – German" lang="de" hreflang="de" data-title="Musculus palmaris brevis" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/M%C3%BAsculo_palmar_corto" title="Músculo palmar corto – Spanish" lang="es" hreflang="es" data-title="Músculo palmar corto" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%85%D8%A7%D9%87%DB%8C%DA%86%D9%87_%DA%A9%D9%88%D8%AA%D8%A7%D9%87_%DA%A9%D9%81%E2%80%8C%D8%AF%D8%B3%D8%AA%DB%8C" title="ماهیچه کوتاه کف‌دستی – Persian" lang="fa" hreflang="fa" data-title="ماهیچه کوتاه کف‌دستی" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Muscle_court_palmaire" title="Muscle court palmaire – French" lang="fr" hreflang="fr" data-title="Muscle court palmaire" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/M%C3%BAsculo_palmar_curto" title="Músculo palmar curto – Galician" lang="gl" hreflang="gl" data-title="Músculo palmar curto" data-language-autonym="Galego" data-language-local-name="Galician" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%A7%A7%EC%9D%80%EC%86%90%EB%B0%94%EB%8B%A5%EA%B7%BC" title="짧은손바닥근 – Korean" lang="ko" hreflang="ko" data-title="짧은손바닥근" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Kratki_dlanski_mi%C5%A1i%C4%87" title="Kratki dlanski mišić – Croatian" lang="hr" hreflang="hr" data-title="Kratki dlanski mišić" data-language-autonym="Hrvatski" data-language-local-name="Croatian" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Muscolo_palmare_breve" title="Muscolo palmare breve – Italian" lang="it" hreflang="it" data-title="Muscolo palmare breve" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/R%C3%B6vid_teny%C3%A9rizom" title="Rövid tenyérizom – Hungarian" lang="hu" hreflang="hu" data-title="Rövid tenyérizom" data-language-autonym="Magyar" data-language-local-name="Hungarian" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Musculus_palmaris_brevis" title="Musculus palmaris brevis – Dutch" lang="nl" hreflang="nl" data-title="Musculus palmaris brevis" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li 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id="mw-content-subtitle"></div></div> <div id="mw-content-text" 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:antiquewhite">Palmaris brevis muscle</th></tr><tr><td colspan="2" class="infobox-image"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:Musculuspalmarisbrevis.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/cf/Musculuspalmarisbrevis.png/250px-Musculuspalmarisbrevis.png" decoding="async" width="250" height="345" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/cf/Musculuspalmarisbrevis.png/375px-Musculuspalmarisbrevis.png 1.5x, //upload.wikimedia.org/wikipedia/commons/c/cf/Musculuspalmarisbrevis.png 2x" data-file-width="434" data-file-height="599" /></a></span><div class="infobox-caption">The muscles of the left hand. Palmar surface (palmaris brevis visible at center left).</div></td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #efefef">Details</th></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em"><a href="/wiki/Anatomical_terms_of_muscle#Insertion_and_origin" title="Anatomical terms of muscle">Origin</a></th><td class="infobox-data"><a href="/wiki/Flexor_retinaculum_of_the_hand" title="Flexor retinaculum of the hand">Flexor retinaculum</a> (medial) and <a href="/wiki/Palmar_aponeurosis" title="Palmar aponeurosis">palmar aponeurosis</a></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em"><a href="/wiki/Anatomical_terms_of_muscle#Insertion_and_origin" title="Anatomical terms of muscle">Insertion</a></th><td class="infobox-data"><a href="/wiki/Hand" title="Hand">Palm</a></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em"><a href="/wiki/Artery" title="Artery">Artery</a></th><td class="infobox-data"><a href="/wiki/Palmar_metacarpal_artery" class="mw-redirect" title="Palmar metacarpal artery">Palmar metacarpal artery</a></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em"><a href="/wiki/Nerve" title="Nerve">Nerve</a></th><td class="infobox-data"><a href="/wiki/Superficial_branch_of_ulnar_nerve" title="Superficial branch of ulnar nerve">Superficial branch of ulnar nerve</a></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em"><a href="/wiki/Anatomical_terms_of_motion" title="Anatomical terms of motion">Actions</a></th><td class="infobox-data">Pulls on skin over <a href="/wiki/Hypothenar_eminence" title="Hypothenar eminence">hypothenar eminence</a>, deepening the cup of the palm and so improving grip</td></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>musculus palmaris brevis</i></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/04.6.02.053%20Entity%20TA98%20EN.htm">A04.6.02.053</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=2520">2520</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%2Ffma37381">37381</a></td></tr><tr><td colspan="2" class="infobox-below"><a href="/wiki/Anatomical_terms_of_muscle" title="Anatomical terms of muscle">Anatomical terms of muscle</a><div style="text-align: right;"><small class="noprint">[<a href="https://www.wikidata.org/wiki/Q955788" class="extiw" title="d:Q955788">edit on Wikidata</a>]</small></div></td></tr></tbody></table> <p><b>Palmaris brevis</b> muscle is a thin, quadrilateral <a href="/wiki/Muscle" title="Muscle">muscle</a>, placed beneath the integument of the <a href="/wiki/Ulna" title="Ulna">ulnar</a> side of the <a href="/wiki/Hand" title="Hand">hand</a>. It acts to fold the skin of the <a href="/wiki/Hypothenar_eminence" title="Hypothenar eminence">hypothenar eminence</a> transversally. </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=Palmaris_brevis_muscle&action=edit&section=1" title="Edit section: Structure"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Origin_and_insertion">Origin and insertion</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Palmaris_brevis_muscle&action=edit&section=2" title="Edit section: Origin and insertion"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Palmaris brevis muscle is located on the <a href="/wiki/Ulna" title="Ulna">ulnar</a> side of the <a href="/wiki/Hand" title="Hand">hand</a>.<sup id="cite_ref-:0_1-0" class="reference"><a href="#cite_note-:0-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-:1_2-0" class="reference"><a href="#cite_note-:1-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> It arises from the <a href="/wiki/Tendon" title="Tendon">tendinous</a> <a href="https://en.wiktionary.org/wiki/fasciculus" class="extiw" title="wikt:fasciculus">fasciculi</a> from the <a href="/wiki/Transverse_carpal_ligament" class="mw-redirect" title="Transverse carpal ligament">transverse carpal ligament</a> and <a href="/wiki/Palmar_aponeurosis" title="Palmar aponeurosis">palmar aponeurosis</a>. The muscle fibres are inserted into the skin on the ulnar border of the palm of the hand,<sup id="cite_ref-:0_1-1" class="reference"><a href="#cite_note-:0-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> and occasionally on the <a href="/wiki/Pisiform_bone" title="Pisiform bone">pisiform bone</a>.<sup id="cite_ref-PTC_3-0" class="reference"><a href="#cite_note-PTC-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Innervation">Innervation</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Palmaris_brevis_muscle&action=edit&section=3" title="Edit section: Innervation"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Palmaris brevis muscle is the only muscle innervated by the <a href="/wiki/Superficial_branch_of_the_ulnar_nerve" class="mw-redirect" title="Superficial branch of the ulnar nerve">superficial branch of the ulnar nerve</a> (C8, T1).<sup id="cite_ref-:1_2-1" class="reference"><a href="#cite_note-:1-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Blood_supply">Blood supply</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Palmaris_brevis_muscle&action=edit&section=4" title="Edit section: Blood supply"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Palmaris brevis muscle is supplied by the <a href="/wiki/Palmar_metacarpal_artery" class="mw-redirect" title="Palmar metacarpal artery">palmar metacarpal artery</a> of the <a href="/wiki/Deep_palmar_arch" title="Deep palmar arch">deep palmar arch</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Discovery">Discovery</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Palmaris_brevis_muscle&action=edit&section=5" title="Edit section: Discovery"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The first recorded observation of the muscle is by Italian anatomist <a href="/wiki/Giambattista_Canano" title="Giambattista Canano">Giambattista Canano</a> sometime before 1543. The muscle was independently discovered a few years later by <a href="/wiki/Realdo_Colombo" title="Realdo Colombo">Realdo Colombo</a> before being pushed to general acceptance in the works of <a href="/wiki/Andreas_Vesalius" title="Andreas Vesalius">Andreas Vesalius</a>.<sup id="cite_ref-Tubbs_Shoja_Loukas_Agutter_2019_p._170_4-0" class="reference"><a href="#cite_note-Tubbs_Shoja_Loukas_Agutter_2019_p._170-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Function">Function</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Palmaris_brevis_muscle&action=edit&section=6" title="Edit section: Function"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Palmaris brevis muscle tenses the skin of the palm on the ulnar side during a grip action.<sup id="cite_ref-:1_2-2" class="reference"><a href="#cite_note-:1-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-PTC_3-1" class="reference"><a href="#cite_note-PTC-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> It also deepens the hollow of the palm.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> The palmaris brevis may protect the <a href="/wiki/Ulnar_nerve" title="Ulnar nerve">ulnar nerve</a> and <a href="/wiki/Ulnar_artery" title="Ulnar artery">ulnar artery</a> from compressive forces during repetitive <a href="/wiki/Prehensility" title="Prehensility">grasping actions</a>.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> The muscle has a <a href="/wiki/Myocyte" class="mw-redirect" title="Myocyte">fatigue-resistant fiber type</a> profile, which supports the idea of a protective function to the ulnar neurovasculature during repetitive intermittent grasping tasks.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Palmaris_brevis_muscle&action=edit&section=7" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Thenar_eminence" title="Thenar eminence">Thenar eminence</a></li> <li><a href="/wiki/Palmar_interossei_muscles" title="Palmar interossei muscles">Palmar interossei muscles</a></li> <li><a href="/wiki/Palmaris_longus_muscle" title="Palmaris longus muscle">Palmaris longus muscle</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Additional_images">Additional images</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Palmaris_brevis_muscle&action=edit&section=8" title="Edit section: Additional images"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1248256098">@media all and (max-width:720px){.mw-parser-output .mod-gallery{width:100%!important}}.mw-parser-output .mod-gallery{display:table}.mw-parser-output .mod-gallery-default{background:transparent;margin-top:4px}.mw-parser-output .mod-gallery-center{margin-left:auto;margin-right:auto}.mw-parser-output .mod-gallery-left{float:left}.mw-parser-output .mod-gallery-right{float:right}.mw-parser-output .mod-gallery-none{float:none}.mw-parser-output .mod-gallery-collapsible{width:100%}.mw-parser-output .mod-gallery .title,.mw-parser-output .mod-gallery .main,.mw-parser-output .mod-gallery .footer{display:table-row}.mw-parser-output .mod-gallery .title>div{display:table-cell;padding:0 4px 4px;text-align:center;font-weight:bold}.mw-parser-output .mod-gallery .main>div{display:table-cell}.mw-parser-output .mod-gallery .gallery{line-height:1.35em}.mw-parser-output .mod-gallery .footer>div{display:table-cell;padding:4px;text-align:right;font-size:85%;line-height:1em}.mw-parser-output .mod-gallery .title>div *,.mw-parser-output .mod-gallery .footer>div *{overflow:visible}.mw-parser-output .mod-gallery .gallerybox img{background:none!important}.mw-parser-output .mod-gallery .bordered-images .thumb img{border:solid var(--background-color-neutral,#eaecf0)1px}.mw-parser-output .mod-gallery .whitebg .thumb{background:var(--background-color-base,#fff)!important}</style><div class="mod-gallery mod-gallery-default"><div class="main"><div><ul class="gallery mw-gallery-traditional nochecker bordered-images whitebg"> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Gray425.png" class="mw-file-description" title="The palmar aponeurosis"><img alt="The palmar aponeurosis" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Gray425.png/107px-Gray425.png" decoding="async" width="107" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Gray425.png/161px-Gray425.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/98/Gray425.png/215px-Gray425.png 2x" data-file-width="627" data-file-height="700" /></a></span></div> <div class="gallerytext">The palmar aponeurosis</div> </li> </ul></div></div></div> <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=Palmaris_brevis_muscle&action=edit&section=9" 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/463/mode/2up">page 463</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-:0-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-:0_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-:0_1-1"><sup><i><b>b</b></i></sup></a></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 class="citation book cs1"><a rel="nofollow" class="external text" href="https://www.worldcat.org/oclc/213447727"><i>Gray's anatomy : the anatomical basis of clinical practice</i></a>. 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(October 2017). <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5603781">"Fiber type composition of the palmaris brevis muscle: implications for palmar function"</a>. <i>Journal of Anatomy</i>. <b>231</b> (4): 626–633. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.1111%2Fjoa.12652">10.1111/joa.12652</a></span>. <a href="/wiki/PMC_(identifier)" class="mw-redirect" title="PMC (identifier)">PMC</a> <span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5603781">5603781</a></span>. <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/28620932">28620932</a>.</cite><span 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href="/wiki/Template:Muscles_of_the_upper_limb" title="Template:Muscles of the upper limb"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Muscles_of_the_upper_limb" title="Template talk:Muscles of the upper limb"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Muscles_of_the_upper_limb" title="Special:EditPage/Template:Muscles of the upper limb"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Muscles_of_the_arm" style="font-size:114%;margin:0 4em"><a href="/wiki/Muscle" title="Muscle">Muscles</a> of the <a href="/wiki/Arm" title="Arm">arm</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Shoulder" title="Shoulder">Shoulder</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><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Deltoid_muscle" title="Deltoid muscle">deltoid</a></li> <li><a href="/wiki/Rotator_cuff" title="Rotator cuff">rotator cuff</a> <ul><li><a href="/wiki/Supraspinatus_muscle" title="Supraspinatus muscle">supraspinatus</a></li> <li><a href="/wiki/Infraspinatus_muscle" title="Infraspinatus muscle">infraspinatus</a></li> <li><a href="/wiki/Teres_minor_muscle" title="Teres minor muscle">teres minor</a></li> <li><a href="/wiki/Subscapularis_muscle" title="Subscapularis muscle">subscapularis</a></li></ul></li> <li><a href="/wiki/Teres_major_muscle" title="Teres major muscle">teres major</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Fascia" title="Fascia">fascia</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/Deltoid_fascia" class="mw-redirect" title="Deltoid fascia">deltoid fascia</a></li> <li><a href="/wiki/Supraspinous_fascia" title="Supraspinous fascia">supraspinous fascia</a></li> <li><a href="/wiki/Infraspinous_fascia" title="Infraspinous fascia">infraspinous fascia</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/Arm" title="Arm">Arm</a><br />(<a href="/wiki/Fascial_compartments_of_arm" title="Fascial compartments of arm">compartments</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%"><a href="/wiki/Anterior_compartment_of_the_arm" class="mw-redirect" title="Anterior compartment of the arm">anterior</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/Coracobrachialis_muscle" title="Coracobrachialis muscle">coracobrachialis</a></li> <li><a href="/wiki/Biceps" title="Biceps">biceps</a></li> <li><a href="/wiki/Brachialis_muscle" title="Brachialis muscle">brachialis</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Posterior_compartment_of_the_arm" class="mw-redirect" title="Posterior compartment of the arm">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/Triceps_brachii_muscle" class="mw-redirect" title="Triceps brachii muscle">triceps brachii</a></li> <li><a href="/wiki/Anconeus_muscle" title="Anconeus muscle">anconeus</a></li> <li><a href="/wiki/Articularis_cubiti_muscle" title="Articularis cubiti muscle">articularis cubiti</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Fascia" title="Fascia">fascia</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/Axillary_sheath" title="Axillary sheath">axillary sheath</a></li> <li><a href="/wiki/Axillary_fascia" title="Axillary fascia">axillary fascia</a></li> <li><a href="/wiki/Brachial_fascia" title="Brachial fascia">brachial fascia</a></li> <li><i>intermuscular septa</i> <ul><li><a href="/wiki/Lateral_intermuscular_septum_of_arm" class="mw-redirect" title="Lateral intermuscular septum of arm">lateral</a></li> <li><a href="/wiki/Medial_intermuscular_septum_of_arm" class="mw-redirect" title="Medial intermuscular septum of arm">medial</a></li></ul></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-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i>spaces</i> <ul><li><a href="/wiki/Quadrangular_space" title="Quadrangular space">quadrangular space</a></li> <li><a href="/wiki/Triangular_space" title="Triangular space">triangular space</a></li> <li><a href="/wiki/Triangular_interval" title="Triangular interval">triangular interval</a></li></ul></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Forearm" title="Forearm">Forearm</a><br />(<a href="/wiki/Fascial_compartments_of_forearm" class="mw-redirect" title="Fascial compartments of forearm">compartments</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%"><a href="/wiki/Anterior_compartment_of_the_forearm" title="Anterior compartment of the forearm">anterior</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>superficial:</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/Pronator_teres_muscle" title="Pronator teres muscle">pronator teres</a></li> <li><a href="/wiki/Palmaris_longus_muscle" title="Palmaris longus muscle">palmaris longus</a></li> <li><a href="/wiki/Flexor_carpi_radialis_muscle" title="Flexor carpi radialis muscle">flexor carpi radialis</a></li> <li><a href="/wiki/Flexor_carpi_ulnaris_muscle" title="Flexor carpi ulnaris muscle">flexor carpi ulnaris</a></li> <li><a href="/wiki/Flexor_digitorum_superficialis_muscle" title="Flexor digitorum superficialis muscle">flexor digitorum superficialis</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold"><i>deep:</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/Pronator_quadratus_muscle" title="Pronator quadratus muscle">pronator quadratus</a></li> <li><a href="/wiki/Flexor_digitorum_profundus_muscle" title="Flexor digitorum profundus muscle">flexor digitorum profundus</a></li> <li><a href="/wiki/Flexor_pollicis_longus_muscle" title="Flexor pollicis longus muscle">flexor pollicis longus</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/Posterior_compartment_of_the_forearm" title="Posterior compartment of the forearm">posterior</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> superficial:</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/Mobile_wad" title="Mobile wad">mobile wad</a> <ul><li><a href="/wiki/Brachioradialis" title="Brachioradialis">brachioradialis</a></li> <li><a href="/wiki/Extensor_carpi_radialis_longus_muscle" title="Extensor carpi radialis longus muscle">extensor carpi radialis longus</a> and <a href="/wiki/Extensor_carpi_radialis_brevis_muscle" title="Extensor carpi radialis brevis muscle">brevis</a></li></ul></li> <li><a href="/wiki/Extensor_digitorum_muscle" title="Extensor digitorum muscle">extensor digitorum</a></li> <li><a href="/wiki/Extensor_digiti_minimi_muscle" title="Extensor digiti minimi muscle">extensor digiti minimi</a></li> <li><a href="/wiki/Extensor_carpi_ulnaris_muscle" title="Extensor carpi ulnaris muscle">extensor carpi ulnaris</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold"><i>deep:</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/Supinator_muscle" title="Supinator muscle">supinator</a></li> <li><a href="/wiki/Anatomical_snuffbox" title="Anatomical snuffbox">anatomical snuffbox</a> <ul><li><a href="/wiki/Abductor_pollicis_longus_muscle" title="Abductor pollicis longus muscle">abductor pollicis longus</a></li> <li><a href="/wiki/Extensor_pollicis_brevis_muscle" title="Extensor pollicis brevis muscle">extensor pollicis brevis</a></li> <li><a href="/wiki/Extensor_pollicis_longus_muscle" title="Extensor pollicis longus muscle">extensor pollicis longus</a></li></ul></li> <li><a href="/wiki/Extensor_indicis_muscle" title="Extensor indicis muscle">extensor indicis</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/Fascia" title="Fascia">fascia</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/Bicipital_aponeurosis" title="Bicipital aponeurosis">bicipital aponeurosis</a></li> <li><i>common tendons</i> <ul><li><a href="/wiki/Common_extensor_tendon" title="Common extensor tendon">extensor</a></li> <li><a href="/wiki/Common_flexor_tendon" title="Common flexor tendon">flexor</a></li></ul></li> <li><a href="/wiki/Antebrachial_fascia" title="Antebrachial fascia">antebrachial fascia</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-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cubital_tunnel" title="Cubital tunnel">cubital tunnel</a></li> <li><a href="/wiki/Osborne%27s_ligament" title="Osborne's ligament">osborne's ligament</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/Hand" title="Hand">Hand</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%">lateral volar</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/Thenar_eminence" title="Thenar eminence">thenar</a> <ul><li><a href="/wiki/Opponens_pollicis_muscle" title="Opponens pollicis muscle">opponens pollicis</a></li> <li><a href="/wiki/Flexor_pollicis_brevis_muscle" title="Flexor pollicis brevis muscle">flexor pollicis brevis</a></li> <li><a href="/wiki/Abductor_pollicis_brevis_muscle" title="Abductor pollicis brevis muscle">abductor pollicis brevis</a></li></ul></li> <li><a href="/wiki/Adductor_pollicis_muscle" title="Adductor pollicis muscle">adductor pollicis</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">medial volar</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/Hypothenar_eminence" title="Hypothenar eminence">hypothenar</a> <ul><li><a href="/wiki/Opponens_digiti_minimi_muscle" class="mw-redirect" title="Opponens digiti minimi muscle">opponens digiti minimi</a></li> <li><a href="/wiki/Flexor_digiti_minimi_brevis_muscle_(hand)" class="mw-redirect" title="Flexor digiti minimi brevis muscle (hand)">flexor digiti minimi brevis</a></li> <li><a href="/wiki/Abductor_digiti_minimi_muscle_of_hand" class="mw-redirect" title="Abductor digiti minimi muscle of hand">abductor digiti minimi</a></li></ul></li> <li><a class="mw-selflink selflink">palmaris brevis</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">intermediate</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/Lumbricals_of_the_hand" title="Lumbricals of the hand">lumbrical</a></li> <li><i>interossei</i> <ul><li><a href="/wiki/Dorsal_interossei_of_the_hand" title="Dorsal interossei of the hand">dorsal</a></li> <li><a href="/wiki/Palmar_interossei_muscles" title="Palmar interossei muscles">palmar</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Fascia" title="Fascia">fascia</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>posterior:</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/Extensor_retinaculum_of_the_hand" title="Extensor retinaculum of the hand">extensor retinaculum</a></li> <li><a href="/wiki/Extensor_expansion" title="Extensor expansion">extensor expansion</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold"><i>anterior:</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/Flexor_retinaculum_of_the_hand" title="Flexor retinaculum of the hand">flexor retinaculum</a></li> <li><a href="/wiki/Palmar_aponeurosis" title="Palmar aponeurosis">palmar aponeurosis</a></li></ul> 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