Structure And Function Of the Living Organisms: The Structure and Functions of The Human Nervous System

The video tutorial explains the nervous system, divided into the central and peripheral systems. The brain, a key component, controls body systems, thoughts, and memories. It is protected by the skull, while the spinal cord is shielded by vertebrae and cerebrospinal fluid. The peripheral system includes nerves branching from the brain and spinal cord. Nerves are bundles of neurons, the basic units of the nervous system.

How many pairs of spinal nerves branch out from the spinal cord?

What is a nerve and what is its basic unit?