Iliolumbar artery
Updates to Article Attributes
The iliolumbar artery is one of three branches of the posterior division of the internal iliac artery.
Summary:
-
origin: posterior division of the internal iliac artery.
Summary:·origin– posterior division of theinternal iliac artery.· -
location: pelvis
· -
supply: ilium, iliacus muscle, psoas major muscle, quadratus lumborum muscle, erector spinae muscle, anterior superior iliac spine anastomoses
, foramen betweenandL5vertebraethe L5/S1 foramensacrum.· - branches:
branches-iliac and lumbar branches
Gross anatomy:
Origin: and branches
The iliolumbar artery originates from the posterior division of the internal iliac artery. It proceeds posteriorly and the superolaterally toward the iliac fossa. Here it divides into iliac and lumbar branches.
Branches:
The iliac branch supplies the iliac iliac fossa. The lumbar branch proceeds laterally to wards muscles of the posterior abdominal wall, which it subsequently supplies.
Supply:
The iliac branch of the iliolumbar artery supplies the ilium and iliacus muscle as well as contributing to anastomoses around the anterior superior iliac spine.
The lumbar branch supplies the foramen between L5 and S1. It proceeds towards psoas major and quadratus lumborum, which it also supplies. It extends posteriorly and also gives supply to the erector spinae.
Variant Anatomy:
The iliolumbar artery is often quoted as the first branch of the posterior division of the internal iliac artery, however the order may vary. It may comearise directly offfrom the internal iliac artery, the common iliac artery, or off other branches of the internal iliac artery.
Related Pathology:
The iliolumbar artery may be injured in trauma of the sacrum, lumbar spine or pelvis.
-<p>The <a title="iliolumbar artery" href="/articles/iliolumbar-artery">iliolumbar artery</a> is one of three branches of the<a title="posterior division of the internal iliac artery" href="/articles/posterior-division-of-the-internal-iliac-artery"> posterior division of the internal iliac artery</a>.</p><p> </p><h4>Summary:</h4><p>· <strong>origin</strong> – posterior division of the<a title="Branches of internal iliac artery (mnemonic)" href="/articles/branches-of-internal-iliac-artery-mnemonic"> internal iliac artery</a>.</p><p>· <strong>location</strong>- <a title="Pelvis" href="/articles/pelvis-1">pelvis</a></p><p>· <strong>supply</strong>- <a title="ilium" href="/articles/ilium">ilium</a>, <a title="Iliacus muscle" href="/articles/iliacus-muscle">iliacus muscle</a>, <a title="Psoas major muscle" href="/articles/psoas-major-1">psoas major muscle</a>, <a title="quadratus lumborum muscle" href="/articles/quadratus-lumborum">quadratus lumborum muscle</a>, <a title="erector spinae muscle" href="/articles/erector-spinae-muscle">erector spinae muscle</a>, <a title="anterior superior iliac spine" href="/articles/anterior-superior-iliac-spine">anterior superior iliac spine</a> anastomoses, foramen between <a title="L5" href="/articles/fifth-lumbar-vertebra-l5">L5</a> vertebrae and <a title="Sacrum" href="/articles/sacrum">sacrum.</a></p><p>· <strong> branches</strong> - <a title="iliac branch of iliolumbar artery" href="/articles/iliac-branch-of-iliolumbar-artery">iliac</a> and <a title="lumbar branch of internal iliac artery" href="/articles/lumbar-branch-of-internal-iliac-artery">lumbar branches</a></p><p> </p><h4>Gross anatomy:</h4><h5>Origin:</h5><p>The iliolumbar artery originates from the posterior division of the internal iliac artery. It proceeds posteriorly and the superolaterally toward the <a title="iliac fossa" href="/articles/iliac-fossa">iliac fossa</a>. Here it divides into iliac and lumbar branches.</p><p> </p><h5>Branches:</h5><p>The iliac branch supplies the iliac fossa. The lumbar branch proceeds laterally to wards muscles of the <a title="posterior abdominal wall" href="/articles/posterior-abdominal-wall">posterior abdominal wall</a>, which it subsequently supplies.</p><p> </p><h5>Supply:</h5><p>The iliac branch of the iliolumbar artery supplies the ilium and iliacus muscle as well as contributing to anastomoses around the anterior superior iliac spine. </p><p> </p><p>The lumbar branch supplies the foramen between L5 and S1. It proceeds towards psoas major and quadratus lumborum, which it also supplies. It extends posteriorly and also gives supply to the erector spinae.</p><p> </p><h5>Variant Anatomy:</h5><p>The iliolumbar artery is often quoted as the first branch of the posterior division of the internal iliac artery, however the order may vary. It may come directly off the internal iliac artery, the common iliac artery, or off other branches of the internal iliac artery. </p><p> </p><h5>Related Pathology:</h5><p>The iliolumbar artery may be injured in trauma.</p>- +<p>The <strong>iliolumbar artery</strong> is one of three branches of the posterior division of the <a title="Internal iliac artery" href="/articles/internal-iliac-artery">internal iliac artery</a>.</p><h4>Summary:</h4><ul>
- +<li>
- +<strong>origin: </strong>posterior division of the<a href="/articles/branches-of-internal-iliac-artery-mnemonic"> internal iliac artery</a>.</li>
- +<li>
- +<strong>location: </strong><a href="/articles/pelvis-1">pelvis</a>
- +</li>
- +<li>
- +<strong>supply:</strong> <a href="/articles/ilium">ilium</a>, <a href="/articles/iliacus-muscle">iliacus muscle</a>, <a href="/articles/psoas-major-1">psoas major muscle</a>, <a href="/articles/quadratus-lumborum">quadratus lumborum muscle</a>, <a href="/articles/erector-spinae-muscle">erector spinae muscle</a>, anterior superior iliac spine anastomoses and the L5/S1 foramen</li>
- +<li>
- +<strong>branches: </strong>iliac and lumbar branches</li>
- +</ul><h4>Gross anatomy</h4><h5>Origin and branches</h5><p>The iliolumbar artery originates from the posterior division of the internal iliac artery. It proceeds posteriorly and the superolaterally toward the <a href="/articles/iliac-fossa">iliac fossa</a>. Here it divides into iliac and lumbar branches.</p><p>The iliac branch supplies the iliac fossa. The lumbar branch proceeds laterally to wards muscles of the <a href="/articles/posterior-abdominal-wall">posterior abdominal wall</a>, which it subsequently supplies.</p><h5>Supply</h5><p>The <strong>iliac branch</strong> of the iliolumbar artery supplies the ilium and iliacus muscle as well as contributing to anastomoses around the anterior superior iliac spine. </p><p>The <strong>lumbar branch</strong> supplies the foramen between L5 and S1. It proceeds towards psoas major and quadratus lumborum, which it also supplies. It extends posteriorly and also gives supply to the erector spinae.</p><h4>Variant Anatomy</h4><p>The iliolumbar artery is often quoted as the first branch of the posterior division of the internal iliac artery, however the order may vary. It may arise directly from the internal iliac artery, the common iliac artery, or other branches of the internal iliac artery. </p><h4>Related Pathology</h4><p>The iliolumbar artery may be injured in trauma of the sacrum, lumbar spine or pelvis.</p>