part of part of zona incerta dopaminergic cell groups A13 dopaminergic cell group dopaminergic group A13 neuronames:1851 A13 cell group A13 dopaminergic cell group A13 dopamine cells UBERON:0036007 A13 NLX:91101 MBA:796 zona incerta, dopaminergic group A group of cells that fluoresce for dopamine and are distributed in clusters that, in the primate, are ventral and medial to the mammillothalamic tract of the hypothalamus; a few extend into the reuniens nucleus of the thalamus (Felten-1983). In the mouse A13 is located ventral to the mammillothalamic tract of the thalamus in the zona incerta (adapted from Brain Info).