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2.Human Reproduction
normal
Which extraembryonic membrane in humans prevents desiccation of the embryo inside the uterus?
A
Yolk sac
B
Amnion
C
Chorion
D
Allantosis
(AIPMT-2008)
Solution
(b) : Amnion is a type of extraembryonic membrane formed by the amniogenic cells inside and splanchnopleuric extraembryonic mesoderm outside. Amnion surrounds the embryo creating the amniotic cavity that is filled with amniotic fluid. The amniotic fluid serves as a shock absorber for the foetus, regulates foetal body temperature and prevents desiccation.
Standard 12
Biology