Indian Journal of Animal Reproduction 22(2): 127-131
2001
ISSN/ISBN: 0970-2997
The umbilical cord is composed of 2 thick arteries and 2 thin veins: a pair of artery and vein diverged at right angles to traverse as placental vessels in the allanto-chorion. Anastomosis of the umbilical arteries at the level of divergence and inter connecting branches of the placental vessels supplying the cotyledons were commonly noticed. The umbilical vessel has exceptional vascular structure.