How many pairs of nerves arise from the spinal cord?

Correct answer: (b) 31

Explanation

There are 31 pairs of spinal nerves in humans, part of the peripheral nervous system.

They are grouped as 8 cervical, 12 thoracic, 5 lumbar, 5 sacral and 1 coccygeal.

Each nerve has a dorsal (sensory) root and a ventral (motor) root.