Question

Draw a diagram of human female reproductive system and label the part.

(i) That produces eggs.

(ii) Where fusion of egg and sperm take place.

(iii) Where zygote is implanted.

What happens to human egg when it is not fertilized?

Answer 1

In the female reproductive system, the part that

(i) produces egg: Ovary

(ii) fusion of egg and sperm takes place: Fallopian tube

(iii) zygote is implanted: uterus

Diagram of female reproductive system:

The ovary releases one egg every month. The uterus also prepares itself every month to receive a fertilized egg. The inner uterus lining (endometrium) becomes thick and is supplied with blood to nourish the embryo. If the egg is not fertilized, then the uterus lining is not required. Hence, it breaks down and is released in the form of blood and mucus through the vagina. This process lasts for 2-8 days and is known as menstruation.