A) neurotransmitters are released by axon endings
B) neurotransmitters which are released by dendrites
C) nerve fibre which is insulated by a medullary sheath
D) sodium pump which starts operating into the nerve fibre
Correct Answer: A
Solution :
Unidirectional transmission of a nerve impulse, through nerve fibre is due to that neuro transminers are released by the axon endings.
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