AP PSYCHOLOGY

Detailed explanation-1: -The region of the neuron containing the nucleus is known as the cell body, soma, or perikaryon (Figure 8.2).

Detailed explanation-2: -The basic unit of communication in the nervous system is the nerve cell (neuron). Each nerve cell consists of the cell body, which includes the nucleus, a major branching fiber (axon) and numerous smaller branching fibers (dendrites).

Detailed explanation-3: -The cell body is also known as cyton or soma.

Detailed explanation-4: -Thus, each nerve cell has a cell body containing a nucleus, endoplasmic reticulum, ribosomes, Golgi apparatus, mitochondria, and other organelles that are essential to the function of all cells (Figure 1.3).

Detailed explanation-5: -The cell body (perikaryon). Most of the cell bodies of neurons are in the central nervous system (brain and spinal cord), or in the ganglia (which lie just outside the spinal cord) of the peripheral nervous system. The axon: a single nerve ‘fibre’ which transmits impulses to the distal end.