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umbilical artery

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n.
Either of two arteries that before birth is a continuation of the common iliac artery and after birth partly forms the medial umbilical ligament and partly is reduced in size and gives off the superior vesical artery.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

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