(a) State in brief the functions of the following organs in the human female reproductive system: Ovary, Fallopian tube.
(b) What is menstruation? Why does it occur?

Explanation

Functions :
Ovary- (i) Production of female gamete
(ii) Production of female hormone
Fallopian tube- (i) Site of fertilization
(ii) Transfer of female gamete from ovary.
Menstruation-(i) It is the periodic breakdown of uterine lining and its removal along with blood and mucous in post pubertal stage of a human female.
(ii) Uterine lining is required to nourish the embryo that is formed if fertilization takes place. In absence of fertilization, the lining is not required and hence is shed in the form of menstruation.