Which part of ovary in mammals acts as an endocrine gland after ovulation?
A
Stroma
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B
Germinal epithelium
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C
Vitelline membrane
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D
Graafian follicle
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Solution
The correct option is D Graafian follicle
Release of ovum from the ovary is called ovulation. The Graafian
follicle rises to the surface; sends out a protuberance or stigma and
everts to release the ovum Into peritoneal cavity. The empty Graafian
follicle contains a blood clot which is called corpus haemorrhagic Its
granulosa cells continue to proliferate, develop yellow carotene pigment
or lutein and get converted into lutein cells. This converts the
ruptured follicle into yellow body called corpus luteum. It becomes a
temporary endocrine gland secreting progesterone with small quantity of
estrogen.