Q. Which one of the following is the correct matching of the events occurring during menstrual cycle?
A) Proliferative phase : Rapid regeneration of myometrium and maturation of Graafian follicle.
B) Development of corpus luteum : Secretory phase and increased secretion of progesterone.
C) Menstruation : breakdown of myometrium and ovum not fertilised.
D) Ovulation : LH and FSH attain peak level and sharp fall in the secretion of progesterone.
Explanation
[Solution from source] After ovulation the ruptured follicle becomes the corpus luteum, which secretes large amounts of progesterone during the luteal (secretory) phase. The proliferative phase and menstruation involve the endometrium, not the myometrium, so those pairings are wrong. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.