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It is a tube of amnion which connects the foetus with the placenta. It is about one and half metres in length.
a) WHARTON’S JEELY- It is a thick extraembryonic mesoderm.
b) RIGHT and LEFT UMBLICAL ARTERIES- these carries the deoxygenated blood from the foetus to the placenta. After birth the two umbilical arteris are converted into MEDIAL UMBILICAL LIGAMENT.
c) LEFT UMBILICAL VEIN- It carries the oxygenated blood from the foetus to the placenta. After birth the Umbilical vein is converted into LIGAMENTUM TERES of the liver.
d) Remanents of vitelli intestinal duct.
e) Remanents of Allantois diverticulum
Fri, Sep 19, 2008
EMBRYOLOGY