Answer:
meanscommunication between the brain and peripheral nerves.
Step-by-step explanation:
Central Nervous System (CNS)
The Central Nervous System is composed of the brain and spinal cord. The brain has 12 cranial nerves. The spinal cord, which originates immediately below the brain stem, extends to the first lumbar vertebra (L1). Beyond L1 the spinal cord becomes the cauda equina (see below). The spinal cord provides a means of communication between the brain and peripheral nerves.