Cell group A9

Substantia nigra, pars compacta.

Dopaminergic neurons (A9) in the substantia nigra.

Belongs to the dopamine-producing cell group

Cell group A9, such a group on the right side and one on the left side, corresponds roughly to the compact part of the substantia nigra as well as strands of dopaminergic neurons that penetrate the reticular part of the substantia nigra.