Choose the correct answer from the four options given below:
On which day of the menstrual cycle does ovulation take place?
Topic: Day of ovulation
Try it
Pick an option and check your answer. The full worked answer is below either way.
Answer
(c) 14th day.
Ovulation occurs about the 14TH DAY of a 28-day menstrual cycle — roughly the midpoint. It is triggered by a surge of LUTEINISING HORMONE (LH) from the anterior pituitary, which causes the Graafian follicle to burst and release the mature ovum.
The four phases, which place the 14th day in context: MENSTRUAL (days 1-5) — the uterine lining is shed FOLLICULAR (days 6-13) — a follicle ripens; the lining is rebuilt OVULATORY (about day 14) — the ovum is released LUTEAL (days 15-28) — the corpus luteum secretes progesterone
Note that day 1 is the first day of MENSTRUATION, not the day of ovulation — which is why option (d) is offered.
14th day.