Question

What is nerve impulse?

Answer 1

Nerve impulse:

1. A nerve impulse is a gradual physicochemical change in a nerve fiber's membrane that occurs after stimulation.
2. It helps to send a record of sensation or a signal from a receptor.
3. It also carries information along the neuron and throughout the nervous system.
4. The cell membranes of the nerve cells alter the flow of ions into the membranes, thus resulting in a charge reversal or action potential.