What Are Dopaminergic Neurons?

Dopaminergic neurons contain and release dopamine neurons as neurotransmitters. Experimental data show that the content is different in each brain region of mammals. Among them, the content in tail nucleus and putamen is the highest, followed by substantia nigra and pale bulb. It has been determined that in the central nervous system, the soma is mainly located in the midbrain, and the nerve fibers that are emitted from it have three pathways: (1) the nigrostriatal system, which originates from the midbrain nigra and stops in the striatum It is mainly the nucleus caudate and putamen and the central amygdala; (2) the limbic system of the midbrain, which starts from the dorsal nucleus of the midbrain, and the axon reaches the nucleus accumbens and olfactory nodules; (3) the nodular funnel system, It starts at the lower part of the thalamus, sends out a short axon, and ends at the midline uplift. The physiological functions involved are broad and important. It participates in regulating the motor functions of the extrapyramidal system, such as stimulating nigrostriatal bundles, which can cause curiosity, exploration, increased exercise, foraging and other activities; if the nigrostriatal bundles on both sides are completely damaged, it can cause no drinking or drinking. Eating, exercise reduction, non-response to surroundings, etc. may even appear stiff. ^[1]