This Embryonic Membrane Provides the Structural Basis for the Umbilical

Question

This embryonic membrane provides the structural basis for the umbilical cord.
A) amnion
B) chorion
C) allantois
D) yolk sac

Accepted Answer

The allantois is involved in early fluid exchange between the embryo and the yolk sac. It contributes to the formation of the umbilical cord by forming blood vessels that ensure the developing embryo can exchange gases and handle liquid waste.