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In humans the oocyte is maintained in a ...

In humans the oocyte is maintained in a state of meiotic arrest by the secretion of

A

granulosa cells

B

zona pellucida

C

cumulus oophorus

D

theca

Text Solution

Verified by Experts

The correct Answer is:
A
A granulosa cell or follicular cell is a somatic cell of the sex cord that is closely associated with the developing female gamete (called on oocyte or egg) in the ovary of mammals. In the primary ovarian follicle and later in follicle development (folliculogenesis,) gransulosa cells advances to form a multilayered cumulus oophours surrounding the oocyte in the prevoulatory follicle.
The major functions of granulosa cells include the producion of sex steriods, as well as myriad of growth factors thought to interact with the oocyte during its development.
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  1. After ovulation, Graafian follicle forms

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  2. Which one of the following is the most likely reason of not occurring ...

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  3. In humans the oocyte is maintained in a state of meiotic arrest by the...

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  4. Human chorionin gonadotropin is secreted by

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  5. In human the unpaired male reproductive structure is

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  6. Bartholin's glands are situated

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  7. The parts of male urethra are

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  8. Formation of corpus luteum is infulenced by

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  9. The cavity contained in Graafian follicle is

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  10. Human sperm cells move by means of a

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  11. In oogenesis, when a diploid cell in the ovary undergoes, meiosis, how...

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  12. Vapaciotation of sperm in mammals involves

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  13. Assertion (A) Generally, a woman do not conceive during lactation per...

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  14. Which hormone is secreted in a womane if pregnancy has occurred ?

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  15. The chemical substance released by activated spermatozoa that acts on ...

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  16. Which one of the following is the correct matching of the events occur...

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  17. Seminal plasma in humans is rich in

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  18. Foetal ejection reflex in human female is induced by

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  19. A change in the amount of yolk and its distribution in the egg will af...

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  20. Embryo at 16-celled stage is called

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