adrenergic neuron transmission a. __________ (amino acid) transported into __________ by Na-dependent transporter; enzymes convert to L-DOPA; enzymes convert to __________ b. transport of dopamine into synaptic vesicle; enzymes convert to __________ c. arrival of action potential causes opening of __________ channels and Ca influx; causes vesicle to release NE into synapse d. NE binds to postsynaptic receptor, triggering response; NE binds to presynaptic receptors, decreasing release e. NE removed by diffusing into systemic circulation, destruction by enzyme COMT, and transport back into neuron through norepinephrine transporter (NET)
