Synaptic vesicles have been released from their protein anchors. What happens next?
a. The vesicles cross the synaptic gap, deliver their contents to the receptors, and dissolve into the fluid.
b. The vesicles migrate to the cell membrane, spill their contents into the synaptic gap, and complete their life cycle.
c. The vesicles cross the synaptic gap, enter the receiving neuron and deliver their contents to the receptors.
d. The vesicles migrate to the cell membrane, spill their contents into the synaptic gap, and are refilled for later use.
ANSWER:
d
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