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Estrogen and Its Functions

Estrogens are...

Question

Estrogens are secreted by

A

Follicle cells

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B

Ovary

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C

Germinal epithelium

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D

Stroma

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Solution

The correct option is C Ovary
Estrogen is the female sex hormone. It is mainly secreted by the granulosa cells of the ovarian follicles (in ovary) under the influence of FSH. These hormones are also released by the corpus luteum (after the egg has been released from the follicle) and from the placenta. It is responsible for maintaining the secondary sexual characteristics in female. In males, it helps in the sperm maturation. It also thickens the uterine lining during the menstrual cycle for pregnancy. So, the correct option is A.

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Q. In mammals, the estrogens are secreted by Graafian follicle from its:

Q. in the female influences the development of the Graafian follicle and secretion of estrogens.

Q. Complete the paragraph with the help of words given in the bracket. (Luteinizing hormone, endometrium of uterus, follicle stimulating hormone, estrogen, progesterone, corpus luteum)

Growth of follicles present in the ovary occurs under the effect of ----- This follicle secretes estrogen. -- --- - -- -- -- grows / regenerates under the effect of estrogen. Under the effect of --- ---, fully grown up follicle bursts, ovulation occurs and -- --- -- -- is formed from remaining part of follicle. It secrets --- --- -- -- and --- --- -- -- --. Under the effect of these hormones, glands of -- -- -- -- are activated and it becomes ready for implantation.

Q. Assertion :Corpus luteum is produced by Graafian follicle after ovulation. Reason: It secretes estrogen which is necessary to maintain pregnancy.

Estrogen and progesterone are secreted by ___

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