मराठी

The Structure Formed by the Villi of the Embryo and the Uterus of the Mother. - Biology

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प्रश्न

The structure formed by the villi of the embryo and the uterus of the mother.

उत्तर

Placenta

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2014-2015 (March) Science Paper 3

संबंधित प्रश्‍न

Which of the following is not a part of the female reproductive system in human beings?


the Biological/technical term for The canal through which the testes descend into the scrotum just before the birth of a male baby


What is the scientific name of birth canal?


When a female child is born, her ovaries already contain thousands of immature eggs (or ova) contained in immature structures A. On maturing, A bursts open and an egg shoots out of the ovary in a process called B. The process B starts in the females at puberty and occurs again and again after a time period x. Before every occurrence of process B, the inner lining of uterus becomes thick and soft with lots of blood vessels in it. When the egg cell gets fertilised by a sperm, then an event C occurs in the life of mature human female which lasts for time period leading to the birth of baby. If, however, the egg cell released by the ovary does not get a sperm to fuse with, then the thick and soft inner lining of uterus breaks down and comes out of the female's body in an event called D. The occurrence of event D is controlled by chemical substances E.
(a) What are A?
(b) What is process B?
(c) What is the time period x?
(d) Name the event C.
(e) How much is the time period y?
(f) What is the name of process D?
(g) Name the chemical substances E.


The germ cell A produced by a person X is round in shape and it fuses with another germ cell B having a long tail and produced by a person Y. The fusion of A and B produces a new cell C. The cell C divides repeatedly and grows inside the organ D of person X to form E in which the body features of the unborn baby are not much developed. E grows further to form F in which the various body features of the unborn baby (like hands, legs, head, eyes, and ears, etc.) can be identified. F grows further and ultimately forms a baby. What are A, B, C, D, E and F? Out of the two persons X and Y, which one is male and which one female?


Name the following:
Organ where implantation takes place.


Give the function of the following:
Uterus


Label the folowing diagram 


Define the four stages in the uterine cycle.


Cryptorchidism is a condition where ______.


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