The orange particles in the synaptic cleft most directly represent which event?
- Acheck_circle
Neurotransmitter release into the synaptic cleft
- B
Sodium influx during depolarization
- C
Myelin sheath formation
- D
Resting potential maintenance
Explanation
The vesicles at the axon terminal release neurotransmitter molecules (orange particles) into the synaptic cleft after the action potential arrives, where they bind to receptors on the postsynaptic dendrite.