How the brain and spinal cord are protected

The same question, asked 3 times: 2023*, 2024*, 2025. Every wording below, oldest first.

Try each one first, then open its answer.

Question 1
2023
21 $(a) How is the brain and spinal cord protected in human beings ? (b) State one main function each of (i) Medulla and (ii) Cerebellum.$
Question 2
2024
30 $(a) List two constituents of Central Nervous System (CNS). How are these components protected from injuries ? (b) Write two limitations of the use of electrical impulses.$
Question 3
2024
35 (a) $(i) Distinguish between hormonal co-ordination in plants and animals. (ii) Which part of the brain is responsible for - (1) intelligence (2) riding a bicycle (3) vomiting (4) controlling hunger (iii) How is brain and spinal-cord protected against mechanical injuries ?$
Question 4
2024
21 (A) $(i) Write the significance of peripheral nervous system in human beings. (ii) How is human brain protected from mechanical injuries and shocks ?$
Question 5
2025
22 $(a) How is brain protected in our body ? (b) A doctor finds in one of his patients that he is not maintaining a proper posture and balance of his body. State the region of brain and also the part of brain which is responsible for it.$

Question 1