Selina solutions concise biology class 7 icse Solutions for Chapter 6 nervous system

Q1) With the help of a suitable diagram describe the structure of a neuron.

Q2) Briefly describe the structure of the cerebrum in the human brain, and mention its functions.

Q3) Mention the three functions of the spinal cord.

Q4) Describe three kinds of nerves, giving an example of each.

Q5) What are voluntary and involuntary actions? Which part of the nervous system controls them?

Q1) Put a tick mark against the correct alternative in the following statements

(a) Medulla oblongata controls

1. Smelling
2. Beating of heart and respiratory movement
3. Intelligence and will power
4. Balancing of the body

(b) spinal cord is an extension of:

5. Cerebellum
6. Cerebrum
7. Vertebral column
8. Medulla oblongata

(c) body posture is maintained by;

9. Cerebrum
10. Cerebellum
11. Medulla oblongata
12. Spinal cord

Q1) Write one word in the space provided to complete the second pair of the related words pertaining to nervous system

Memory: cerebrum:: breathing : ______

Breathing: cerebellum:: reasoning: _______

Q2)

(a) Name three major divisions of the human nervous system.

(b) Name three major divisions of the human nervous system.

Q3) Given here is the diagram of a neuron. name the parts numbered 1-6