NEET 2008 Biology question

Which extraembryonic membrane in humans prevents desiccation of the embryo inside the uterus?

(1)AmnionCorrect
(2)Chorion
(3)Allantois
(4)Yolk sac

Answer: (1)

Solution

The amnion is the innermost extra-embryonic membrane; it encloses the amniotic cavity filled with amniotic fluid, which keeps the embryo moist, protects it from desiccation and acts as a shock absorber. Hence

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Question ID VK-090098