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vitelline vessel in Medicine

vitelline vessel

n.
  1. The artery that carries blood to the yolk sac from the embryo.
  2. The vein that carries blood from the yolk sac to the embryo.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.