A) LH
B) FSH
C) chorionic gonadotropin
D) progesterone
Correct Answer: C
Solution :
Human Chorionic Gonadotropin (HCG) is the proteinaceous hormone which is secreted by placenta for maintaining corpus luteum (and hence, continued secretion of progesterone). LH (Leuteinizing Hormone) helps in growth and ripening of Graafian follicle. Alongwith FSH it promotes ovulation. Leuteinization or growth of ruptured follicle occurs under the influence of LH. It also controls secretion of progesteron by corpus luteum. FSH (Follicle Stimulating Hormone) is a proteinaceous gonadotropic hormone secreted by gonadotrophs or gonadotrophic cells of anterior pituitary. The hormone stimulates spermatogenesis in testes, maturation of Graafian follicle/ovarian follicle and secretion of estrogen in ovaries. Progesteron is a steroid hormone secreted by corpus luteum under the influence of LH of anterior pituitary in the second half of menstrual cycle and HCG of placenta during pregnancy. Progesteron checks ovulation. Hyposecretion results in abortion and misconception.
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