Question

What is nerve impulse ? describe the generation and propagation of nerve impulse throught axon accordng to zoology .1+8 marks?

Answer 1

Nerve impulse is the wave of irratibility.
Transmission of nerve cell-- when impulse comes to axon ending the synaptic vessels containing neurotransmitter i.e. acetylcholine gets diffused to walls of pre synaptic membrane. Acetylcholine is released and impulse reach to synaptic vessel. This chemical sets a new impulse in dendrites of next neuron