axon mitochondria 3.依据神经递 0 synaptic 质:胆碱能 o\ vesicles Cholinergic 0000000000 多巴胺能 (Dopaminergic presynaptic 00000000 postsynaptic 肾上腺素能 membrane membrane (Adrenergic) postsynaptic 肽能 cell peptidergic等 postsynaptIc cell synaptic cleft5 3. 依据神经递 质:胆碱能 (Cholinergic), 多巴胺能 (Dopaminergic), 肾上腺素能 (Adrenergic), 肽能 (peptidergic)等