Multiple choice

Which of the following is rapidly acting, small-sized neurotransmitter?

Neurotransmitters are chemicals stored in the synaptic vesicle meant for transmitting nerve impulse across the synapse.

  1. GABA

  2. TSH-RH

  3. Bradykinin

  4. Somatostatin

  5. All of the above

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A Correct answer
Explanation

Gamma amino butyric acid (GABA) is an amino acid derivative, which is responsible for presynaptic inhibition.