Q. What are Dopaminergic neurons?
Dopamine
Dopaminergic neurons occur in two closely connected groups: Ventral tegmental area (VTA) of the midbrain and Substantia nigra,(in medial region of the midbrain). While substantia nigra neurons project to the striatum, VTA neurons serves to most areas of cerebral cortex and limbic system.
Receptors
At least five types of Dopamine receptors, D1 to D5 are known to exist. D1 and D2 are evenly distributed in the straitum. D2 receptors also occur throughout the cerebral cortex particularly temporal lobe. D3 receptors are concentrated in the limbic portion, and in hippocampus.