Which of the following is the structural part of a neuron that releases a neurotransmitter?
A. Dendrite
B. Axon hillock
C. Soma
D. Presynaptic terminal
E. Postsynaptic terminal
ANS: D
Rationale: Axons end in presynaptic terminals, or fingerlike projections, which are the transmitting elements of the neuron. Neurons transmit information about their activity via the release of chemicals called neurotransmitters from the presynaptic terminal into the synaptic cleft.
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