ANATOMY

Detailed explanation-1: -Nerve cells are also called neurons. Neurons are present all over your body, especially in your brain and spinal cord. Nerves, together with your brain and spinal cord, are the foundation of your nervous system.

Detailed explanation-2: -Summary. The nervous system uses electrical and chemical means to help all parts of the body to communicate with each other. The brain and spinal cord make up the central nervous system. Nerves everywhere else in the body are part of the peripheral nervous system.

Detailed explanation-3: -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-4: -Although concentrated mainly in the brain stem (the brain and the spine) there are approximately 100 billion neurons, such like sensory, afferent and motor neurons, within the human body.

Detailed explanation-5: -C1-C8: Cervical nerves. T1-T12: Thoracic nerves. L1-L5: Lumbar nerves. S1-S5: Sacral nerves. One pair of coccygeal nerves. 08-May-2020