Question

An axon has four terminal ends connected with dendrites of four different neurons. Its nerve impulse will

• A. Become weak due to distribution into four
• B. Travel in all the four neurons with equal strength
• C. Pass on to one neuron only
• D. Travel to none because the movement of impulse is from dendrite to axon

Answer 1

Answer: (B)

Travel in all the four neurons with equal strength

The transmission of nerve impulse occurs via the axon terminal ends that release the synaptic vesicles filled with the neurotransmitters. These neurotransmitters are emptied into the synapse and are received by the receptors present on the dendrites of the post-synaptic neuron. So, a single presynaptic neuron can transmit the nerve impulse equally to four different neurons via four axon terminal ends.

Hence, the correct answer is 'Travel in all the four neurons with equal strength'