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iliac artery

noun, Anatomy
1.
Also called common iliac artery. either of two large arteries that conduct blood to the pelvis and the legs.
2.
Also called external iliac artery. the outer branch of an iliac artery that becomes the femoral artery.
3.
Also called hypogastric artery, internal iliac artery. the inner branch of an iliac artery that conducts blood to the gluteal region.
Origin
1830-1840
1830-40
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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iliac-artery in Medicine

iliac artery n.

  1. One of two terminal branches of the abdominal aorta, becoming the internal iliac artery and giving off the external iliac artery; common iliac artery.

  2. An artery with its origin in the common iliac artery, with branches to the inferior epigastric and deep circumflex iliac arteries, becoming the femoral artery at the inguinal ligament; external iliac artery.

  3. An artery with its origin in the common iliac artery, with branches to the iliolumbar, lateral sacral, obturator, superior gluteal, inferior gluteal, umbilical, superior vesical, inferior vesical, and middle rectal arteries, usually dividing into anterior and posterior arteries; hypogastric artery.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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