Solution

Spinal nerve: a) The nerves arise from the spinal cord. b) There are 31 pairs of spinal nerves present. c) They are distributed in the skin, sweat gland, mucosa, blood vessels, joints, mucosal and skeletal muscle. Cranial nerve: a) These nerves arise from the brain. b) There are 12 pairs of cranial nerves. c) These are distributed in the head, neck, and face region.