Mohamed Abbas

Role of Presynaptic Terminals and Synaptic Vesicles in Neurotransmission

Synaptic vesicles contain neurotransmitters and are present in thea. dendrites.b. cell body.c. axolemma.d. presynaptic terminals.e. trigger zone.

presynaptic terminals.

The correct answer is d. presynaptic terminals.

Synaptic vesicles are small fluid-filled sacs that are present in the presynaptic terminal, which is located at the end of an axon. Synaptic vesicles contain neurotransmitters, which are chemicals that are released when a nerve impulse reaches the presynaptic terminal. Once released, the neurotransmitters travel across the synaptic cleft and bind to specific receptors on the postsynaptic membrane, which causes a response in the postsynaptic neuron.

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