Nervous system diagram courtesy of Wikimedia Commons
The nervous system is anatomically divided in two parts:
- Central nervous system (CNS) - Consists of the brain and spinal cord.
- Peripheral nervous system (PNS) - Consists of all other nervous tissue.
Histologically, tissue in the nervous system is made up of cells
and cell processes
. Cells consist of neurons
(also known as glial cells). Cell processes consist of axons