Question

Some important events in the human female reproductive cycle are given below.
Arrange the events in proper sequence.
I. Secretion of FSH
II. Growth of corpus luteum
III. Growth of the follicle
IV. Ovulation
V. Sudden increase in the levels of LH

• A. III - I - IV - II - V
• B. I - III - V - IV - II
• C. I - IV - III - V - II
• D. II - I - III - IV - V

Answer 1

The correct option is B I - III - V - IV - II

The sequence of events in the human female reproductive cycle is given below:

i) Menstrual phase in which the lining of the endometrium sheds off

ii) Follicular phase in which FSH is secreted by the pituitary gland for the development, growth and maturation of the primary follicle into the mature Graafian follicle

iii) Ovulatory phase (where ovulation takes place) which occurs due to the LH surge

iv) After ovulation, the empty Graafian follicle forms corpus luteum which, in turn, secretes progesterone which is necessary for the maintenance of the endometrial lining