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href="https://fa.wikipedia.org/wiki/%D8%AE%D8%B7_%D8%B0%D9%88%D8%B2%D9%86%D9%82%D9%87%E2%80%8C%D8%A7%DB%8C" title="خط ذوزنقه‌ای – Persian" lang="fa" hreflang="fa" data-title="خط ذوزنقه‌ای" 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/Ligne_trap%C3%A9zo%C3%AFde" title="Ligne trapézoïde – French" lang="fr" hreflang="fr" data-title="Ligne trapézoïde" 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/Li%C3%B1a_trapezoide_da_clav%C3%ADcula" title="Liña trapezoide da clavícula – Galician" lang="gl" hreflang="gl" data-title="Liña trapezoide da clavícula" data-language-autonym="Galego" data-language-local-name="Galician" 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class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Oblique line for trapezoid ligament</div> <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:whitesmoke">Trapezoid line</th></tr><tr><td colspan="2" class="infobox-image"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:Gray201.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Gray201.png/250px-Gray201.png" decoding="async" width="250" height="85" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Gray201.png/375px-Gray201.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Gray201.png/500px-Gray201.png 2x" data-file-width="600" data-file-height="205" /></a></span><div class="infobox-caption">Left <a href="/wiki/Clavicle" title="Clavicle">clavicle</a>. Inferior surface. (Oblique line for trapezoid lig. labeled at center 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>linea trapezoidea</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/02.4.02.011%20Entity%20TA98%20EN.htm">A02.4.02.011</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=1178">1178</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%2Ffma74586">74586</a></td></tr><tr><td colspan="2" class="infobox-below"><a href="/wiki/Anatomical_terms_of_bone" title="Anatomical terms of bone">Anatomical terms of bone</a><div style="text-align: right;"><small class="noprint">[<a href="https://www.wikidata.org/wiki/Q837937" class="extiw" title="d:Q837937">edit on Wikidata</a>]</small></div></td></tr></tbody></table> <p>From the <a href="/wiki/Conoid_tubercle" class="mw-redirect" title="Conoid tubercle">conoid tubercle</a>, an oblique ridge, the <b>trapezoid line</b>, <b>trapezoid ridge</b>, or <b>oblique</b>, runs forward and lateralward, and affords attachment to the <a href="/wiki/Trapezoid_ligament" title="Trapezoid ligament">trapezoid ligament</a> on inferior surface of clavicle. </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=Trapezoid_line&action=edit&section=1" 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/200/mode/2up">page 200</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> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist 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aria-labelledby="Bones_of_the_arm" 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"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Bones_of_upper_limb" title="Template:Bones of upper limb"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Bones_of_upper_limb" title="Template talk:Bones of upper limb"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Bones_of_upper_limb" title="Special:EditPage/Template:Bones of upper limb"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Bones_of_the_arm" style="font-size:114%;margin:0 4em"><a href="/wiki/Bone" title="Bone">Bones</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_girdle" title="Shoulder girdle">Shoulder girdle</a>, <a href="/wiki/Clavicle" title="Clavicle">clavicle</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Conoid_tubercle" class="mw-redirect" title="Conoid tubercle">conoid tubercle</a></li> <li><a class="mw-selflink selflink">trapezoid line</a></li> <li><a href="/wiki/Costal_tuberosity_of_clavicle" title="Costal tuberosity of clavicle">costal tuberosity</a></li> <li><a href="/wiki/Subclavian_groove" title="Subclavian groove">subclavian groove</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Scapula" title="Scapula">Scapula</a></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><i>fossae</i> (<a href="/wiki/Subscapular_fossa" class="mw-redirect" title="Subscapular fossa">subscapular</a>, <a href="/wiki/Supraspinatous_fossa" class="mw-redirect" title="Supraspinatous fossa">supraspinatous</a>, <a href="/wiki/Infraspinatous_fossa" class="mw-redirect" title="Infraspinatous fossa">infraspinatous</a>)</li> <li><i>notches</i> (<a href="/wiki/Suprascapular_notch" title="Suprascapular notch">suprascapular</a>, <a href="/wiki/Great_scapular_notch" title="Great scapular notch">great scapular</a>)</li> <li><a href="/wiki/Glenoid_fossa" title="Glenoid fossa">glenoid fossa</a></li> <li><i>tubercles</i> (<a href="/wiki/Infraglenoid_tubercle" title="Infraglenoid tubercle">infraglenoid</a>, <a href="/wiki/Supraglenoid_tubercle" title="Supraglenoid tubercle">supraglenoid</a>)</li> <li><a href="/wiki/Spine_of_scapula" title="Spine of scapula">spine of scapula</a></li> <li><a href="/wiki/Acromion" title="Acromion">acromion</a></li> <li><a href="/wiki/Coracoid_process" title="Coracoid process">coracoid process</a></li> <li><i>angles</i> (<a href="/wiki/Superior_angle_of_scapula" class="mw-redirect" title="Superior angle of scapula">superior</a>, <a href="/wiki/Inferior_angle_of_the_scapula" class="mw-redirect" title="Inferior angle of the scapula">inferior</a>, <a href="/wiki/Lateral_angle_of_the_scapula" class="mw-redirect" title="Lateral angle of the scapula">lateral</a>)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Humerus" title="Humerus">Humerus</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Upper_extremity_of_humerus" class="mw-redirect" title="Upper extremity of humerus">upper extremity</a>:</i> <i>necks</i> (<a href="/wiki/Anatomical_neck_of_humerus" title="Anatomical neck of humerus">anatomical</a>, <a href="/wiki/Surgical_neck_of_the_humerus" title="Surgical neck of the humerus">surgical</a>)</li> <li><i>tubercles</i> (<a href="/wiki/Greater_tubercle" title="Greater tubercle">greater</a>, <a href="/wiki/Lesser_tubercle" title="Lesser tubercle">lesser</a>)</li> <li><a href="/wiki/Bicipital_groove" title="Bicipital groove">bicipital groove</a></li> <li><i><a href="/wiki/Body_of_humerus" class="mw-redirect" title="Body of humerus">body</a>:</i> <a href="/wiki/Radial_sulcus" class="mw-redirect" title="Radial sulcus">radial sulcus</a></li> <li><a href="/wiki/Deltoid_tuberosity" title="Deltoid tuberosity">deltoid tuberosity</a></li> <li><i><a href="/wiki/Lower_extremity_of_humerus" class="mw-redirect" title="Lower extremity of humerus">lower extremity</a>:</i> <a href="/wiki/Capitulum_of_the_humerus" title="Capitulum of the humerus">capitulum</a></li> <li><a href="/wiki/Trochlea_of_humerus" title="Trochlea of humerus">trochlea</a></li> <li><i>epicondyles</i> (<a href="/wiki/Lateral_epicondyle_of_the_humerus" title="Lateral epicondyle of the humerus">lateral</a>, <a href="/wiki/Medial_epicondyle_of_the_humerus" title="Medial epicondyle of the humerus">medial</a>)</li> <li><i>supracondylar ridges</i> (<a href="/wiki/Lateral_supracondylar_ridge" title="Lateral supracondylar ridge">lateral</a>, <a href="/wiki/Medial_supracondylar_ridge" title="Medial supracondylar ridge">medial</a>)</li> <li><i>fossae</i> (<a href="/wiki/Radial_fossa" title="Radial fossa">radial</a>, <a href="/wiki/Coronoid_fossa_of_the_humerus" title="Coronoid fossa of the humerus">coronoid</a>, <a href="/wiki/Olecranon_fossa" title="Olecranon fossa">olecranon</a>)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Forearm" title="Forearm">Forearm</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/Radius_(bone)" title="Radius (bone)">Radius</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>near elbow (<a href="/wiki/Head_of_radius" title="Head of radius">head</a>, <a href="/wiki/Radial_tuberosity" title="Radial tuberosity">tuberosity</a>)</li> <li>near wrist (<a href="/wiki/Ulnar_notch_of_the_radius" title="Ulnar notch of the radius">ulnar notch</a>, <a href="/wiki/Radial_styloid_process" title="Radial styloid process">styloid process</a>, <a href="/wiki/Lister%27s_tubercle" title="Lister's tubercle">Lister's tubercle</a>)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Ulna" title="Ulna">Ulna</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>near elbow (<a href="/wiki/Tuberosity_of_the_ulna" title="Tuberosity of the ulna">tuberosity</a>, <a href="/wiki/Olecranon" title="Olecranon">olecranon</a>, <a href="/wiki/Coronoid_process_of_the_ulna" title="Coronoid process of the ulna">coronoid process</a>, <a href="/wiki/Radial_notch" title="Radial notch">radial notch</a>, <a href="/wiki/Trochlear_notch" title="Trochlear notch">trochlear notch</a>)</li> <li>near wrist (<a href="/wiki/Ulnar_styloid_process" title="Ulnar styloid process">styloid process</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%"><a href="/wiki/Carpal_bones" title="Carpal bones">Carpal bones</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/Scaphoid_bone" title="Scaphoid bone">scaphoid</a></li> <li><a href="/wiki/Lunate_bone" title="Lunate bone">lunate</a></li> <li><a href="/wiki/Triquetral_bone" title="Triquetral bone">triquetral</a></li> <li><a href="/wiki/Pisiform_bone" title="Pisiform bone">pisiform</a></li> <li><a href="/wiki/Trapezium_(bone)" title="Trapezium (bone)">trapezium</a></li> <li><a href="/wiki/Trapezoid_bone" title="Trapezoid bone">trapezoid</a></li> <li><a href="/wiki/Capitate_bone" title="Capitate bone">capitate</a></li> <li><a href="/wiki/Hamate_bone" title="Hamate bone">hamate</a> <ul><li><a href="/wiki/Hamulus_of_hamate_bone" class="mw-redirect" title="Hamulus of hamate bone">hamulus</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Metacarpal_bones" title="Metacarpal bones">Metacarpal bones</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/First_metacarpal_bone" title="First metacarpal bone">1st</a></li> <li><a href="/wiki/Second_metacarpal_bone" title="Second metacarpal bone">2nd</a></li> <li><a href="/wiki/Third_metacarpal_bone" title="Third metacarpal bone">3rd</a></li> <li><a href="/wiki/Fourth_metacarpal_bone" title="Fourth metacarpal bone">4th</a></li> <li><a href="/wiki/Fifth_metacarpal_bone" title="Fifth metacarpal bone">5th</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Phalanx_bone" title="Phalanx bone">Phalanges</a></th><td class="navbox-list-with-group navbox-list navbox-even" 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