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Dopaminergic pathways, sometimes called dopaminergic projections, are neural pathways in the brain that transmit the neurotransmitter dopamine from one region of the brain to another. The neurons of the dopaminergic pathways have axons that run the entire length of the pathway. The neurons' somata produce the enzymes that synthesize dopamine, and they are then transmitted via the projecting axons to their synaptic destinations, where most of the dopamine is produced. Dopaminergic nerve cell bodies in such areas as the substantia nigra tend to be pigmented due to the presence of the black pigment melanin. ==Pathways == There are eight dopaminergic pathways. The four major ones are: Named pathways〔 (same as above) :Mesocorticolimbic : * VTA → Prefrontal cortices : * VTA → Nucleus accumbens :Nigrostriatal : * SNc → Caudate nucleus : * SNc → Putamen :Tuberoinfundibular : * Tuberal hypothalamus (Infundibular nucleus) → Pituitary gland (Median eminence) Minor pathways * VTA → Amygdala * VTA → Hippocampus * VTA → Cingulate gyrus * VTA → Olfactory bulb The mesocortical and mesolimbic pathways are sometimes referred to simultaneously as the mesocorticolimbic projection, system, or pathway.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「dopaminergic pathways」の詳細全文を読む スポンサード リンク
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