Human Reproduction Ques 23
23. Withdrawal of which of the following hormones is the immediate cause of menstruation? [2006]
(a) $FSH$
(b) FSH-RH
(c) Progesterone
(d) Estrogen
Show Answer
Answer : c
Hints & Solutions
(c) Progesterone hormone which is secreted by the corpus luteum in the ovaries is responsible to stop ovulation (during pregnancy) and fixes the foetus to the uterine wall, facilitates placenta formation and controls the foetus development in uterus. If this hormone is withdrawn then fixation of foetus to uterine wall will not take place, formation of placenta will also not take place, ovulation starts from the ovaries and hence in human female menstruation starts.
BETA
