Regarding synapses:

• A. the synaptic cleft is 30-50mm wide
• B. transmitters are released from synaptic knobs secondary to Na+ triggers
• C. the amount of transmitter released is proportionate to Ca2+ efflux
• D. acetylcholine is present in granulated vesicles in synaptic knob
• E. the EPSP is caused by Na+ influx