Colliscalene triangle

Changed by Henry Knipe, 15 May 2016

Back to revision history

Updates to Synonym Attributes

Title was changed:

~~colliscalene~~Colliscalene triangle

Updates to Article Attributes

Body was changed:

Show markup changes

The colliscalene triangle is an important anatomical region of the neck, situated medial to the scalenus anterior muscle.

Gross anatomy:

Boundaries:

~~Medial~~medial: lateral border of longus colli
~~Lateral~~lateral: medial border of scalenus anterior
~~Inferior~~inferior: ~~1st~~first part of the subclavian artery
~~Apex~~apex: carotid tubercle (Chassaignac's tubercle)
~~Roof~~roof: deep investing layer of cervical fascia

Variant anatomy:

~~Additional~~additional vertebral vein passing through foramen transversarium of C7
~~Vertebral~~vertebral artery entering at C7

-<p>The <strong>colliscalene</strong> <strong>triangle</strong> is an important anatomical region of the neck, situated medial to the <a title="scalenus anterior" href="/articles/scalenus-anterior">scalenus anterior</a> muscle.</p><h4>Gross anatomy:</h4><h5>Boundaries:</h5><ul>
~~-<li>Medial: lateral border of <a title="longus colli" href="/articles/longus-colli">longus colli</a>~~
+<p>The <strong>colliscalene</strong> <strong>triangle</strong> is an important anatomical region of the neck, situated medial to the <a href="/articles/scalenus-anterior">scalenus anterior</a> muscle.</p><h4>Gross anatomy</h4><h5>Boundaries</h5><ul>
+<li>medial: lateral border of <a href="/articles/longus-colli">longus colli</a>
~~-<li>Lateral: medial border of scalenus anterior</li>~~
~~-<li>Inferior: 1st part of the <a title="subclavian artery" href="/articles/subclavian-artery">subclavian artery</a>~~
+<li>lateral: medial border of scalenus anterior</li>
+<li>inferior: first part of the <a href="/articles/subclavian-artery">subclavian artery</a>
~~-<li>Apex: <a title="Carotid tubercle" href="/articles/carotid-tubercle">Carotid tubercle</a> (Chassaignac's tubercle)</li>~~
~~-<li>Roof: deep investing layer of cervical fascia</li>~~
~~-</ul><h5>Contents:</h5><ul>~~
~~-<li>Arterial<ul>~~
~~-<li><a title="Thyrocervical trunk" href="/articles/thyrocervical-trunk">Thyrocervical trunk</a></li>~~
+<li>apex: <a href="/articles/carotid-tubercle">carotid tubercle</a> (Chassaignac's tubercle)</li>
+<li>roof: deep investing layer of cervical fascia</li>
+</ul><h5>Contents</h5><ul>
+<li>arterial<ul>
+<li><a href="/articles/thyrocervical-trunk">thyrocervical trunk</a></li>
~~-<a title="Inferior thyroid artery" href="/articles/inferior-thyroid-artery">Inferior thyroid artery</a> - arching over apex of triangle</li>~~
~~-<li>1st part of <a title="vertebral artery" href="/articles/vertebral-artery">vertebral artery</a>~~
+<a href="/articles/inferior-thyroid-artery">inferior thyroid artery</a>: arching over apex of triangle</li>
+<li>first part of <a href="/articles/vertebral-artery">vertebral artery</a>
~~-<li>Venous<ul><li><a title="Vertebral vein" href="/articles/vertebral-vein">Vertebral vein</a></li></ul>~~
+<li>venous<ul><li><a href="/articles/vertebral-vein">Vertebral vein</a></li></ul>
~~-<li>Nervous:<ul>~~
~~-<li><a title="Inferior cervical (stellate) ganglion" href="/articles/inferior-cervical-ganglion">Inferior cervical (stellate) ganglion</a></li>~~
~~-<li><a title="Middle cervical ganglion" href="/articles/middle-cervical-ganglion">Middle cervical ganglion</a></li>~~
~~-<li><a title="Ansa subclavia" href="/articles/ansa-subclavia">Ansa subclavia</a></li>~~
+<li>nervous<ul>
+<li><a href="/articles/inferior-cervical-ganglion">inferior cervical (stellate) ganglion</a></li>
+<li><a href="/articles/middle-cervical-ganglion">middle cervical ganglion</a></li>
+<li><a href="/articles/ansa-subclavia">ansa subclavia</a></li>
~~-<li>Lymphatic:<ul>~~
+<li>lymphatic<ul>
~~-<a title="Thoracic duct" href="/articles/thoracic-duct">Thoracic duct</a> (on left)</li>~~
+<a href="/articles/thoracic-duct">thoracic duct</a> (on left)</li>
~~-<a title="Right lymphatic duct" href="/articles/right-lymphatic-duct">Right lymphatic duct</a> (on right)</li>~~
+<a href="/articles/right-lymphatic-duct">right lymphatic duct</a> (on right)</li>
~~-</ul><h5>Variant anatomy:</h5><ul>~~
~~-<li>Additional vertebral vein passing through <a title="foramen transversarium" href="/articles/foramen-transversarium">foramen transversarium</a> of C7</li>~~
~~-<li>Vertebral artery entering at C7</li>~~
+</ul><h4>Variant anatomy</h4><ul>
+<li>additional vertebral vein passing through <a href="/articles/foramen-transversarium">foramen transversarium</a> of C7</li>
+<li>vertebral artery entering at C7</li>