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NEETZoologyNeural Control and Coordination

How is an impulse (action potential) transmitted from the pre-synaptic neuron to the post-synaptic neuron at a chemical synapse?

Options

  1. ABy generating a new potential in the post-synaptic neuron
  2. BBy opening ion channels in the post-synaptic neuron
  3. CBy flowing directly from one neuron to another
  4. DBy releasing neurotransmitters into the synaptic cleft

Correct answer

D. By releasing neurotransmitters into the synaptic cleft

Step-by-step solution

.A synapse is a junction between two neurons that allows the transmission of a nerve impulse from one neuron to another.The action potential is generated in response to a stimulus and travels along the length of the axon, transmitting the nerve impulse. The rise in permeability to Na⁺ is short-lived and is followed by a rise in permeability to K⁺. K⁺ diffuses outside the membrane, restoring the resting potential of the membrane. The new potential developed in the post-synaptic neuron as a result of neurotransmitter

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