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<title>Triangular interval</title>

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<span id="openzim-page-title" class="mw-page-title-main"><span class="mw-page-title-main">Triangular interval</span></span>

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</style><table class="infobox"><tbody><tr><th colspan="2" class="infobox-above" style="background-color:dimgray; color: white">Triangular interval</th></tr><tr><td colspan="2" class="infobox-image"><div class="infobox-caption">Suprascapular and axillary nerves of right side, seen from behind. Triangular interval is labeled.)</div></td></tr><tr><td colspan="2" class="infobox-image"><div class="infobox-caption">The scapular and circumflex arteries. (Triangular interval is visible but not labeled.)</div></td></tr><tr><td colspan="2" class="infobox-below"><a href="Anatomical_terminology" title="Anatomical terminology">Anatomical terminology</a><div style="text-align: right;"></div></td></tr></tbody></table>

<p>The <b>triangular interval</b> (also known as the <b>lateral triangular space</b>,<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> <b>lower triangular space</b>,<sup id="cite_ref-isbn0-7817-5309-0_2-0" class="reference"><a href="#cite_note-isbn0-7817-5309-0-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> and <b>triceps hiatus</b>) is a space found in the <a href="Axilla" title="Axilla">axilla</a>. It is one of the three intermuscular spaces found in the <a href="Axillary_space" title="Axillary space">axillary space</a>. The other two spaces are: <a href="Quadrangular_space" title="Quadrangular space">quadrangular space</a> and <a href="Triangular_space" title="Triangular space">triangular space</a>.<sup id="cite_ref-BD_Chaurasia_2010_3-0" class="reference"><a href="#cite_note-BD_Chaurasia_2010-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>

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<div class="mw-heading mw-heading2"><h2 id="Borders">Borders</h2></div>

<p>Two of its borders are as follows:

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<ul><li><a href="Teres_major" class="mw-redirect" title="Teres major">teres major</a> - superior</li>

<li>long head of the <a href="Triceps_brachii" class="mw-redirect" title="Triceps brachii">triceps brachii</a> - medial</li></ul>

<p>Some sources state the lateral border is the <a href="Humerus" title="Humerus">humerus</a>,<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-title_5-0" class="reference"><a href="#cite_note-title-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> while others define it as the lateral head of the triceps.<sup id="cite_ref-isbn0-7817-5309-0_2-1" class="reference"><a href="#cite_note-isbn0-7817-5309-0-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> (The effective difference is relatively minor, though.)

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<div class="mw-heading mw-heading2"><h2 id="Contents">Contents</h2></div>

<p>The contents of its borders are as follows:

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<ul><li><a href="Radial_nerve" title="Radial nerve">Radial nerve</a></li>

<li><a href="Deep_artery_of_arm" title="Deep artery of arm">Profunda brachii</a></li></ul>

<p>The <a href="Radial_nerve" title="Radial nerve">radial nerve</a> is visible through the triangular interval, on its way to the <a href="Posterior_compartment_of_the_arm" class="mw-redirect" title="Posterior compartment of the arm">posterior compartment of the arm</a>.

<a href="Deep_artery_of_arm" title="Deep artery of arm">Profunda brachii</a> also passes through the triangular interval from anterior to posterior.

</p>

<div class="mw-heading mw-heading2"><h2 id="Additional_images">Additional images</h2></div>

<div class="gallerytext">Muscles on the dorsum of the scapula, and the triceps brachii.</div>

</li>

</ul>

<div class="mw-heading mw-heading2"><h2 id="Triangular_Interval_Syndrome">Triangular Interval Syndrome</h2></div>

<p>Triangular Interval Syndrome (TIS) was described as a differential diagnosis for radicular pain in the upper extremity.<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> It is a condition where the radial nerve is entrapped in the triangular interval resulting in upper extremity radicular pain. The radial nerve and profunda brachii pass through the triangular interval and are hence vulnerable. The triangular interval has a potential for compromise secondary alterations in thickness of the teres major and triceps.<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> It is described based on cadaveric studies that fibrous bands were commonly present between the teres major and triceps. When these bands were present, rotation of the shoulder caused a reduction in cross sectional area of the space. Normal resting postures of humeral adduction and internal rotation with scapular protraction may be speculated as a precedent for teres major contractures owing to the shortened position of this muscle in this position. In addition, hypertrophy of this muscle can occur secondary to weight training and potentially compromise the triangular interval with resultant entrapment of the radial nerve.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> Shoulder dysfunctions have a potential for shortening and hypertrophy of the teres major. Shoulders that exhibit stiffness, secondary to capsular tightness, contribute to contracture and hypertrophy of the teres major.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> Hence, restricted external rotation can encourage adaptive shortening and thickening of the internal rotators of the shoulder principally the teres major and subscapularis. One may speculate that the lateral arm pain presented in shoulder dysfunctions may be of a nerve origin secondary to adverse neural tension of the radial nerve. The triceps brachii has a potential to entrap the radial nerve in the triangular interval secondary to hypertrophy. The presence of a fibrous arch in the long head and lateral head further complicates the situation. Repeated forceful extension seen in weight training and sport involving punching may be a precedent to this scenario. The radial nerve is vulnerable as it passes through this space, for all of the reasons mentioned above.

</p>

<ul><li><a href="Axillary_spaces" class="mw-redirect" title="Axillary spaces">Axillary spaces</a></li>

<li><a href="Quadrangular_space" title="Quadrangular space">Quadrangular space</a></li>

<li><a href="Triangular_space" title="Triangular space">Triangular space</a></li></ul>

<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>

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<li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://iris3.med.tufts.edu/dentgross/labguide/Shoulder4.html">Photo at tufts.edu</a></span>

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</style><cite id="CITEREFKyung_Won_Chung2005" class="citation book cs1">Kyung Won Chung (2005). <i>Gross Anatomy (Board Review)</i>. Hagerstown, MD: Lippincott Williams & Wilkins. p. 34. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>0-7817-5309-0</bdi>.</cite></span>

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<li id="cite_note-BD_Chaurasia_2010-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-BD_Chaurasia_2010_3-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFKrishna2010" class="citation book cs1">Krishna, Garg (2010). "7 - Scapula". <i>BD Chaurasia's Human Anatomy (Regional and Applied Dissection and Clinical) Volume 1 - Upper limb and thorax</i> (Fifth ed.). India: CBS Publishers and Distributors Pvt Ltd. p. 81. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>978-81-239-1863-1</bdi>.</cite></span>

</li>

<li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><cite id="CITEREFAdam_MitchellDrake,_RichardGray,_Henry_DavidWayne_Vogl2005" class="citation book cs1">Adam Mitchell; Drake, Richard; Gray, Henry David; Wayne Vogl (2005). <i>Gray's anatomy for students</i>. Elsevier/Churchill Livingstone. p. 650. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>0-443-06612-4</bdi>.</cite></span>

</li>

<li id="cite_note-title-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-title_5-0">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://anatomy.uams.edu/anatomyhtml/topogr_back.html">"uams.edu"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">January 2,</span> 2008</span>.</cite></span>

</li>

<li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text">Sebastian D. Triangular Interval Syndrome. A differential diagnosis for upper extremity radicular pain. Physiother Theory Pract. 2010 Feb;26(2):113-9.</span>

</li>

<li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text">Ng ABY, Borhan J, Ashton HR, Misra AN, Redfern DRM. Radial nerve palsy in an elite bodybuilder. Br J Sports Med 2003;37:185-186.</span>

</li>

<li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text">McClelland D, Paxinos A. The anatomy of the quadrilateral space with reference to quadrilateral space syndrome. J Shoulder Elbow Surg. 2007 Nov 9</span>

</li>

<li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text">Jiu-jenk Lin, Jing-Lan Yang. Reliability and validity of shoulder tightness measurement in patients with stiff shoulders. Manual Therapy. 2006; 11 (146-52).</span>

</li>

</ol></div>

<div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2></div>

<ul><li><a rel="nofollow" class="external text" href="http://www.ithaca.edu/faculty/lahr/LE2000/UE_Ind_Study_99/shoulder/edited/superficial_post.jpeg">Photo at ithaca.edu</a></li></ul>

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</style><div id="Muscles_of_the_arm172" style="font-size:114%;margin:0 4em"><a href="Muscle" title="Muscle">Muscles</a> of the <a href="Arm" title="Arm">arm</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="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="Deltoid_muscle" title="Deltoid muscle">deltoid</a></li>

<li><a href="Rotator_cuff" title="Rotator cuff">rotator cuff</a>

<ul><li><a href="Supraspinatus_muscle" title="Supraspinatus muscle">supraspinatus</a></li>

<li><a href="Infraspinatus_muscle" title="Infraspinatus muscle">infraspinatus</a></li>

<li><a href="Teres_minor_muscle" title="Teres minor muscle">teres minor</a></li>

<li><a href="Subscapularis_muscle" title="Subscapularis muscle">subscapularis</a></li></ul></li>

<li><a href="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="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="Deltoid_fascia" class="mw-redirect" title="Deltoid fascia">deltoid fascia</a></li>

<li><a href="Supraspinous_fascia" title="Supraspinous fascia">supraspinous fascia</a></li>

<li><a href="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="Arm" title="Arm">Arm</a><br>(<a href="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="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="Coracobrachialis_muscle" title="Coracobrachialis muscle">coracobrachialis</a></li>

<li><a href="Biceps" title="Biceps">biceps</a></li>

<li><a href="Brachialis_muscle" title="Brachialis muscle">brachialis</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="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="Triceps_brachii_muscle" class="mw-redirect" title="Triceps brachii muscle">triceps brachii</a></li>

<li><a href="Anconeus_muscle" title="Anconeus muscle">anconeus</a></li>

<li><a href="Articularis_cubiti_muscle" title="Articularis cubiti muscle">articularis cubiti</a></li></ul>

<ul><li><a href="Axillary_sheath" title="Axillary sheath">axillary sheath</a></li>

<li><a href="Axillary_fascia" title="Axillary fascia">axillary fascia</a></li>

<li><a href="Brachial_fascia" title="Brachial fascia">brachial fascia</a></li>

<li><i>intermuscular septa</i>

<ul><li><a href="Lateral_intermuscular_septum_of_arm" class="mw-redirect" title="Lateral intermuscular septum of arm">lateral</a></li>

<li><a href="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="Quadrangular_space" title="Quadrangular space">quadrangular space</a></li>

<li><a href="Triangular_space" title="Triangular space">triangular space</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="Forearm" title="Forearm">Forearm</a><br>(<a href="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="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="Pronator_teres_muscle" title="Pronator teres muscle">pronator teres</a></li>

<li><a href="Palmaris_longus_muscle" title="Palmaris longus muscle">palmaris longus</a></li>

<li><a href="Flexor_carpi_radialis_muscle" title="Flexor carpi radialis muscle">flexor carpi radialis</a></li>

<li><a href="Flexor_carpi_ulnaris_muscle" title="Flexor carpi ulnaris muscle">flexor carpi ulnaris</a></li>

<li><a href="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="Pronator_quadratus_muscle" title="Pronator quadratus muscle">pronator quadratus</a></li>

<li><a href="Flexor_digitorum_profundus_muscle" title="Flexor digitorum profundus muscle">flexor digitorum profundus</a></li>

<li><a href="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="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="Mobile_wad" title="Mobile wad">mobile wad</a>

<ul><li><a href="Brachioradialis" title="Brachioradialis">brachioradialis</a></li>

<li><a href="Extensor_carpi_radialis_longus_muscle" title="Extensor carpi radialis longus muscle">extensor carpi radialis longus</a> and <a href="Extensor_carpi_radialis_brevis_muscle" title="Extensor carpi radialis brevis muscle">brevis</a></li></ul></li>

<li><a href="Extensor_digitorum_muscle" title="Extensor digitorum muscle">extensor digitorum</a></li>

<li><a href="Extensor_digiti_minimi_muscle" title="Extensor digiti minimi muscle">extensor digiti minimi</a></li>

<li><a href="Extensor_carpi_ulnaris_muscle" title="Extensor carpi ulnaris muscle">extensor carpi ulnaris</a></li></ul>

<ul><li><a href="Supinator_muscle" title="Supinator muscle">supinator</a></li>

<li><a href="Anatomical_snuffbox" title="Anatomical snuffbox">anatomical snuffbox</a>

<ul><li><a href="Abductor_pollicis_longus_muscle" title="Abductor pollicis longus muscle">abductor pollicis longus</a></li>

<li><a href="Extensor_pollicis_brevis_muscle" title="Extensor pollicis brevis muscle">extensor pollicis brevis</a></li>

<li><a href="Extensor_pollicis_longus_muscle" title="Extensor pollicis longus muscle">extensor pollicis longus</a></li></ul></li>

<li><a href="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="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="Bicipital_aponeurosis" title="Bicipital aponeurosis">bicipital aponeurosis</a></li>

<li><i>common tendons</i>

<ul><li><a href="Common_extensor_tendon" title="Common extensor tendon">extensor</a></li>

<li><a href="Common_flexor_tendon" title="Common flexor tendon">flexor</a></li></ul></li>

<li><a href="Antebrachial_fascia" title="Antebrachial fascia">antebrachial fascia</a></li></ul>

<ul><li><a href="Cubital_tunnel" title="Cubital tunnel">cubital tunnel</a></li>

<li><a href="Osborne's_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="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="Thenar_eminence" title="Thenar eminence">thenar</a>

<ul><li><a href="Opponens_pollicis_muscle" title="Opponens pollicis muscle">opponens pollicis</a></li>

<li><a href="Flexor_pollicis_brevis_muscle" title="Flexor pollicis brevis muscle">flexor pollicis brevis</a></li>

<li><a href="Abductor_pollicis_brevis_muscle" title="Abductor pollicis brevis muscle">abductor pollicis brevis</a></li></ul></li>

<li><a href="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="Hypothenar_eminence" title="Hypothenar eminence">hypothenar</a>

<ul><li><a href="Opponens_digiti_minimi_muscle" class="mw-redirect" title="Opponens digiti minimi muscle">opponens digiti minimi</a></li>

<li><a href="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="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 href="Palmaris_brevis_muscle" title="Palmaris brevis muscle">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="Lumbricals_of_the_hand" title="Lumbricals of the hand">lumbrical</a></li>

<li><i>interossei</i>

<ul><li><a href="Dorsal_interossei_of_the_hand" title="Dorsal interossei of the hand">dorsal</a></li>

<li><a href="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="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="Extensor_retinaculum_of_the_hand" title="Extensor retinaculum of the hand">extensor retinaculum</a></li>

<li><a href="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="Flexor_retinaculum_of_the_hand" title="Flexor retinaculum of the hand">flexor retinaculum</a></li>

<li><a href="Palmar_aponeurosis" title="Palmar aponeurosis">palmar aponeurosis</a></li></ul>

</div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr></tbody></table></div></div><div><div class="zim-footer">

This article is issued from <a class="external text" title="Last edited on 2024-05-01" href="https://en.wikipedia.org/wiki/?title=Triangular_interval&oldid=1221715137">Wikipedia</a>. The text is available under <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Creative Commons Attribution-Share Alike 4.0</a> unless otherwise noted. Additional terms may apply for the media files.

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