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  4. The extra embryonic membranes of mammalian embryo are derived from

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Q. The extra embryonic membranes of mammalian embryo are derived from

BVP MedicalBVP Medical 2007

Solution:

Extra embryonic membranes of mammalian embryo of foetal membranes are derived from trophoblast (an epithelium surrounding the mammalian blastocysts). These membranes are yolk sac, amnion, chorion and allantois. They helps in respiration, nutrition, excretion and protection.