umbilical artery

(redirected from Obliterated umbilical artery)
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um·bil·i·cal ar·ter·y

[TA]
before birth this artery is a continuation of the internal iliac; after birth it is obliterated between the bladder and umbilicus, forming the medial umbilical ligament, the remaining portion, between the internal iliac artery and bladder, being reduced in size and giving off the superior vesical arteries.
Synonym(s): arteria umbilicalis [TA]

um·bil·i·cal ar·te·ry

(ŭm-bil'i-kăl ahr'tĕr-ē) [TA]
Before birth, a continuation of the internal iliac; after birth it is obliterated between the bladder and umbilicus, forming the medial umbilical ligament, the remaining portion, between the internal iliac artery and bladder, being reduced in size and giving off the superior vesical arteries.
Synonym(s): arteria umbilicalis [TA] .

umbilical artery

In the embryo, either of a pair of arteries that originate in the embryonic aortas (the dorsal aortas) and that carry blood from the embryo to the yolk sac and the chorion. In the adult, the lumen of the umbilical arteries disappears and the arteries become fibrous cords, called the medial umbilical ligaments, along the inner surface of the abdominal wall.
See also: artery
References in periodicals archive ?
It goes antero-inferiorly from the anterior division of internal iliac artery (sometimes it may arise from the same origin with uterine artery or from the obliterated umbilical artery) and supplies the distal end of the ureter and bladder.