Question

The system, which consists of nerves arising from the brain and spinal cord is called as

• A. Peripheral nervous system
• B. Central nervous system
• C. Autonomous nervous system
• D. None of the above

Answer 1

The correct option is A Peripheral nervous system

The peripheral nervous system (PNS) is the part of the nervous system, that consists of the nerves and ganglia outside of the brain and spinal cord.

The main function of the PNS is to connect the central nervous system (CNS) to the limbs and organs, essentially serving as a communication relay going back and forth between the brain and the extremities.

Unlike the CNS, the PNS is not protected by the bone of spine and skull or by the blood brain barrier, which leaves it exposed to toxins and mechanical injuries. The peripheral nervous system is divided into the somatic nervous system and the autonomic nervous system.