

MCQOPTIONS
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1. |
When the action potential reaches the axon ending, it causes tiny bubbles of chemicals called ____________________ to release their contents into the synapticgap. |
A. | Spinal reflex |
B. | Presynaptic |
C. | Synaptic vesicles |
D. | Synaptic cleft |
Answer» D. Synaptic cleft | |