Q. Withdrawal of which of the following hormones is the immediate cause of menstruation ?
A) Estrogens
B) FSH
C) FSH-RH
D) Progesterone
Explanation
[Solution from source] When the corpus luteum degenerates without fertilisation, progesterone falls and the endometrium can no longer be kept, so menstruation starts. FSH and oestrogen falling are not the direct trigger. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.