Special types of cells which conduct impulses from one place to another in the body are called neurons.
Neurons are the structural and functional units of the nervous system.
Nerve cells, the largest cells in the human the body, may measure up to a few metres in length.
Nerve cells have the ability to generate and conduct electro- chemical impulses.
The cells that support the nerve cells and help in their functioning are called neuroglia.
Nerve cells and neuroglial cells together form the nerves.