Question

what are electrical impilses in neuron or nerve cell

Answer 1

The human brain has approximately 100 billion nerve cells. Nerve cells are also found in the spinal cord. Together, the brain and spinal cord make up the central nervous system (CNS). Each nerve cell is called a neuron, and this is comprised of a cell body directing its activities; dendrites, small, branchlike extensions that receive signals from other neurons to transmit to the cell body; and the axon, a long extension from the cell body along which electrical signals travel. Such signals not only connect the brain and spinal cord, but they also carry impulses to muscles and glands. The electrical signal that travels down an axon is called a nerve impulse.