Name the source of gonadotropins in human females. Explain the changes

1.	Name the source of gonadotropins in human females. Explain the changes brought about in the ovary by these hormones during menstrual cycle. OR Describe how the changing levels of FSH, LH and progesterone during menstrual cycle induce changes in the ovary and the uterus in human female.
Answer» Gonadotropins (LH and FSH) are secreted by the anterior lobe of pituitary gland. Gonadotropins (LH and FSH) increase gradually during the follicular phase (proliferative phase) of menstrual cycle and stimulate follicular development as well as secretion of estrogen by the growing follicles. LH and FSH attain a peak level in the middle of the cycle (about 14th day) and rapid secretion of LH induces rupture of Graafian follicle followed by ovulation (release of ovum). LH stimulates transformation of Graafian follicle into corpus luteum.

Name the source of gonadotropins in human females. Explain the changes brought about in the ovary by these hormones during menstrual cycle. OR Describe how the changing levels of FSH, LH and progesterone during menstrual cycle induce changes in the ovary and the uterus in human female.

Answer»

Gonadotropins (LH and FSH) are secreted by the anterior lobe of pituitary gland.

Gonadotropins (LH and FSH) increase gradually during the follicular phase (proliferative phase) of menstrual cycle and stimulate follicular development as well as secretion of estrogen by the growing follicles.

LH and FSH attain a peak level in the middle of the cycle (about 14th day) and rapid secretion of LH induces rupture of Graafian follicle followed by ovulation (release of ovum).

LH stimulates transformation of Graafian follicle into corpus luteum.

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