Inferolateral trunk
Updates to Synonym Attributes
Title
was changed:
Updates to Article Attributes
Body
was changed:
The inferolateral trunk, along with the meningohypophyseal trunk, is a a branch of the C4 segment of the internal carotid artery. It is identified in upto 80% of dissection specimens but is less frequently seen on imaging.
It is also referred to as the artery to the inferior cavernous sinus, arising laterally from the cavernous segment and is directed inferiorly (thus inferolateral trunk).
ItThe inferolateral trunk has 3three or 4four branches, as it passes between the trochlear nerve (CN IV) (below) and ophthalmic division of the trigeminal nerve (CN V) (above).:
- first branch runs posteriorly along the abducents nerve (CN VI) and supplies part of the tentorium. The marginal tentorial artey (usually from the meningohypophyseal trunk may arise from here)
- second branch to the superior orbital fissure (directed anteriorly) anasatamoses with the deep recurrent meningeal branch of the ophthalmic artery (this is an important consideration during embolisation)
- third branch is given off as the artery passes of the ophthalmic division and supplies the maxillary division of the trigeminal nerve as it exits through foramen rotundum. (this is the most frequenlty seen branch on angiography)
- forth branch anasatmoses with the accessory menigeal artery which passes through foramen ovale
- fifth branch may be present; the recurrent artery to the foramen lacerum. It anastamoses with a carotid branch from the ascending pharyngeal artery
-<p>The <strong>inferolateral trunk</strong>, along with the <a href="/articles/meningohypophyseal-trunk-1">meningohypophyseal trunk</a>, is a a branch of the C4 segment of the <a href="/articles/internal-carotid-artery-1">internal carotid artery</a>. It is identified in upto 80% of dissection specimens but is less frequently seen on imaging. </p><p>It is also referred to as the artery to the inferior cavernous sinus, arising laterally from the cavernous segment and is directed inferiorly (thus inferolateral trunk). </p><p>It has 3 or 4 branches, as it passes between the <a href="/articles/trochlear-nerve">trochlear nerve (CN IV)</a> (below) and ophthalmic division of the <a href="/articles/trigeminal-nerve">trigeminal nerve (CN V)</a> (above).</p><ul>- +<p>The <strong>inferolateral trunk</strong>, along with the <a href="/articles/meningohypophyseal-trunk-1">meningohypophyseal trunk</a>, is a a branch of the C4 segment of the <a href="/articles/internal-carotid-artery-1">internal carotid artery</a>. It is identified in upto 80% of dissection specimens but is less frequently seen on imaging. </p><p>It is also referred to as the artery to the inferior cavernous sinus, arising laterally from the cavernous segment and is directed inferiorly (thus inferolateral trunk). </p><p>The inferolateral trunk has three or four branches, as it passes between the <a href="/articles/trochlear-nerve">trochlear nerve (CN IV)</a> (below) and ophthalmic division of the <a href="/articles/trigeminal-nerve">trigeminal nerve (CN V)</a> (above):</p><ul>
-<li>third branch is given off as the artery passes of the ophthalmic division and supplies the maxillary division of the trigeminal nerve as it exits through <a title="Foramen rotundum" href="/articles/foramen-rotundum">foramen rotundum</a>. (this is the most frequenlty seen branch on angiography)</li>-<li>forth branch anasatmoses with the accessory menigeal artery which passes through <a title="Foramen ovale" href="/articles/foramen-ovale">foramen ovale</a>- +<li>third branch is given off as the artery passes of the ophthalmic division and supplies the maxillary division of the trigeminal nerve as it exits through <a href="/articles/foramen-rotundum">foramen rotundum</a>. (this is the most frequenlty seen branch on angiography)</li>
- +<li>forth branch anasatmoses with the accessory menigeal artery which passes through <a href="/articles/foramen-ovale">foramen ovale</a>
-<li>fifth branch may be present; the recurrent artery to the <a title="Foramen lacerum" href="/articles/foramen-lacerum">foramen lacerum</a>. It anastamoses with a carotid branch from the <a href="/articles/ascending-pharyngeal-artery">ascending pharyngeal artery</a>- +<li>fifth branch may be present; the recurrent artery to the <a href="/articles/foramen-lacerum">foramen lacerum</a>. It anastamoses with a carotid branch from the <a href="/articles/ascending-pharyngeal-artery">ascending pharyngeal artery</a>
References changed:
- 1. Practical Neuroangiography. LWW. ISBN:1451144156. <a href="http://books.google.com/books?vid=ISBN1451144156">Read it at Google Books</a> - <a href="http://www.amazon.com/gp/product/1451144156">Find it at Amazon</a><span class="auto"></span>
- 1. P. Pearse Morris "Practical Neuroangiography" Published by Lippincott Williams & Wilkins
Images Changes:
Image ( update )
Caption
was changed:
Unable to process the form. Check for errors and try again.