Multiple choice

Why is transmission of nerve impulse unidirectional?

  1. As the nerve fibre is insulated by medullary sheath

  2. As the sodium pump starts from cyton and proceeds to axonal end

  3. As the neurotransmitter is released only at dendrite ends

  4. As the neurotransmitter is released only at axon ends
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

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