has soma location has synaptic IO in region adult optic lobe neuron medulla layer M9 proximal medullary amacrine neuron adult GABAergic neuron cell body rind of adult medulla proximal medullary amacrine neuron Pm3 2011-12-13T11:05:21Z VFB:FBbt_00110066 Proximal medullary amacrine neuron that branches at the proximal surface of the medulla, with both branches forming a broad terminal arbor in medulla layer M9. The processes of different cells intermingle significantly, and the arbor density is heterogeneous. It occupies a peripheral intracolumnar position. It is GABAergic (Davis et al., 2020). There are around 35-40 of these cells per hemisphere (Nern et al., 2025). fly_anatomy.ontology Pm09 Pm3 FBbt:00110066 CB3856 Pm3