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Human Reproduction

Question

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The extra structure that provides nutrition to the embryo is

umbilicus

amnion

chorian

placenta

Solution

D.

placenta

Placenta is a connection between foetus and mother formed from fusion of allantois, chorian and uterine endometrium.

Functions:

(a) Provides nourishment

(b) Helps in respiration

(c) Helps in excretion

Amnion and chorian are foetal membranes. Amnion helps in protection and chorian helps in nourishment.

Some More Questions From Human Reproduction Chapter

Ovulation takes place :

Which of the following shows hermaphroditism and self fertilization ?

The chromosone in primary spermatocyte are :

The male reproductive system is located in the body, in the :

Sertoli cells provide :

The middle piece of human sperm contains :

Seminiferous tubules open into vasa efferentia through :

Polar bodies are produced during the process :

In 28 days woman's menstrual cycle, ovulation occurs on :

Scrotum communicates with abdominal cavity through :

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