Given below is a diagram of two systems together in the human body.

(a) Name the systems.

(b) Name the parts numbered 1-10.

(c) Describe the functions of parts 3, 4, 5 and 6.

(d) What will happen if part 3 on both sides gets blocked?

The following diagram represents the vertical sectional view of the human female reproductive system.

(a) Label the parts indicated by the guidelines 1 to 8.

(b) How does the uterus prepare for the reception of zygote?

(c) What happens to the uterus, if fertilisation fails to take place?

Given below is the schematic diagram of the sectional view of the human male reproductive system.

(a) Name the parts numbered 1- 11.

(b) State the functions of the parts numbered 1, 2, 3, 5, 8 and 11.

The diagram below represents two reproductive cells A and B. Study the same and then answer the questions that follow :

(a) Identify the reproductive cells A and B.

(b) Name the specific part of the reproductive system where the above cells are produced.

(c) Where in the female reproductive system do these cells unite?

(d) Name the main hormones secreted by the ovary and testes.

(e) Name the accessory glands found in the male reproductive system and state the function of their secretion.

The diagram below is that of a developing human foetus in the womb. Study the same and answer the questions that follow :

(a) Name the parts '1 'to '5' indicated by guidelines.

(b) What term is given to the period of development of the foetus in the womb?
(c) How many days does the foetus take to be fully developed?
(d) Mention two functions of the part labelled '2' other than its endocrine function.
(e) Name any one hormone produced by the part labelled '2'.

Given below is a portion of the diagram to show the diagrammatic highly magnified view of a single human sperm. Complete the diagram to show its normal structure.

Given below is the outline of the male reproductive system. Name the parts labelled 1 to 8. Also, name the corresponding structure of part (4) in the female reproductive system.