Which one of the following events is correctly matched with the time period in a normal menstrual cycle?

Options

A. release of egg : 5th day
B. endometriurn regenerates : 5 - 10 days
C. endometrium secretes nutrients for implantation : 11-18 days
D. rise in progesterone level : 1 -15 days

Answer

B

Explanation

Menstruation is a part of the female reproductive cycle that starts when girls become sexually mature at the time of puberty. The parts of the body involved in the menstrual cycle include the brain, pituitary gland, uterus and cervix, ovaries, fallopian tubes and vagina. The following events given in the options occur in a normal menstrual cycle.
(i) Release of egg called ovulation usually takes place roughly 14 days after the first day of the start of a period for fertilization.
(ii) Following menstruation endometrium regenerates about 8 days during the proliferative phase.
(iii) Implantation occurs after 7 days of fertilization.
(iv) Progesterone level rises after ovulation which occurs after 14 days.