Answer / Narottam Vashist

Peritoneum is a thin, serous membrane that lines the abdominal cavity and covers most of the organs in the abdomen. It produces peritoneal fluid, which reduces friction during organ movement.

What are the endocrine functions of the placenta?

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Explain gastrulation? What stage follows gastrulation?

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Explain foetal pole?

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After the neurula stage and from its ventral portion to the dorsal how can the morphology of the embryo be described?

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From which germ layer do blood cells originate?

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What is the embryonic origin of the nervous system in vertebrates?

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Are the extra embryonic membranes the same in all vertebrates?

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Name the three types of germ layers that form tissues and organs in animals?

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What is notochord?

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To which structures do coeloms give birth?

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Differentiate between amnion and chorion?

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What are the archenteron and the blastopore? What is the stage of the embryonic development in which these structures are formed? What are the destinations of the archenteron and of the blastopore?

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