Question

What is the peripheral nervous system? Mention its two types. (4 Mark)

Answer 1

The peripheral nervous system consists of the nerves originating from the central nervous system and connecting the system with all parts of the body. (1 Mark)

These nerves are of two types:

A. Cranial nerves are 12 in number and they originate from the brain. These nerves are associated with various parts in the head, thorax and abdomen. (1.5 Mark)
B. The spinal nerves are 31 pairs in number and originate from the spinal cord. These nerves are also connected with arms, legs, skin and some other parts of the body. (1.5 Mark)