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NEET2026BiologyChapterActual

In a typical chemical synapse, the synaptic vesicles containing neurotransmitter molecules are characteristically located within the:

Options

  1. ASynaptic cleft
  2. BPost-synaptic membrane
  3. CSynaptic knob
  4. DSchwann cells

Correct answer

C. Synaptic knob

Step-by-step solution

In a chemical synapse, the transmission of a nerve impulse occurs from the pre-synaptic neuron to the post-synaptic neuron. The axon terminal of the pre-synaptic neuron ends in a bulb-like structure known as the synaptic knob (or terminal bouton). The synaptic knob contains numerous membrane-bound sacs called synaptic vesicles, which are filled with neurotransmitter molecules. When an action potential reaches the synaptic knob, these vesicles fuse with the pre-synaptic membrane and release their neurotransmitters i

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