Question

what is nerve impulse

Answer 1

a signal transmitted along a nerve fibre. It consists of a wave of electrical depolarization that reverses the potential difference across the nerve cell membranes.

Answer 2

When a sensory organ like skin or a muscle experiences a stimuli, it generates an electrical impulse which is carried by the nerve fibres or axons, to relay a message to the brain for getting a response. This electrical impulse is known as nerve impulse.