Question

What constitutes the central and peripheral nervous systems? howare the components of central nervous system protected?

Answer 1

The central nervous system is the brain and spinal cord, the peripheral nervous system is the rest of the nervous system. The brain is shielded by a skull, cushioned by cranial fluid, and blocked from most microscopic invaders by a blood brain barrier. The spinal cord is supported by the spine and cushioned by spinal fluid.

Answer 2

Answer:

Central nervous system is composed of the brain and spinal cord. Peripheral nervous system is composed of nerves which are outside the spinal cord.

Central nervous system has a well-developed system for protection. Brain is enclosed in skull for protection. Spinal cord is enclosed in vertebral column for protection. Additionally, the cerebrospinal fluid provides a cushion against mechanical shocks.