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The following figure refers to the human...

The following figure refers to the human foetus within the uterus. Identify A to D correctly

A

A - Uterine, B - Yolk sac, C - Umbilical cord, D - Cervix

B

A - Placenta, B - Amnion, C - Umbilical cord, D - Cervix

C

A - Placenta, B - Yolk sac, C - Umbilical cord, D - Vagina

D

A - Placenta, B - Yolk sac, C - Umbilical cord, D – Cervix

Text Solution

Verified by Experts

The correct Answer is:
D
A = Placenta, a flattened circular organ in the uterus of pregnant eutherian mammals, nourishing and maintaining the fetus through the umbilical cord.
B = Yolk sac is a membranous sac attached to an embryo, formed by cells of the hypoblast adjacent to the embryonic disk.
C = Umbilical cord is a conduit between the developing embryo or fetus and the placenta.
D = Cervix, is the lower portion of the uterus.
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