PATHOLOGY

Detailed explanation-1: -The nervous system uses tiny cells called neurons (NEW-ronz) to send messages back and forth from the brain, through the spinal cord, to the nerves throughout the body. Billions of neurons work together to create a communication network.

Detailed explanation-2: -The central nervous system (which includes the brain and spinal cord) is made up of two basic types of cells: Neurons, the nerve cells that send and receive signals. Glia, cells that provide structure in the brain.

Detailed explanation-3: -The central nervous system (CNS) consists of the brain and the spinal cord. It is in the CNS that all of the analysis of information takes place. The peripheral nervous system (PNS), which consists of the neurons and parts of neurons found outside of the CNS, includes sensory neurons and motor neurons.

Detailed explanation-4: -The correct answer is c) All neurons have the same four functional zones.