develops from has synaptic IO in region medulla layer M1 medulla layer M2 medulla layer M3 medulla layer M4 medulla layer M5 distal medullary amacrine neuron Notch OFF hemilineage secondary neuron immature distal medullary amacrine neuron Dm11 adult glutamatergic neuron optic lobe wide-field columnar neuron medulla sublayer M6A distal medullary amacrine neuron Dm11 2015-11-10T14:00:27Z Dm11 FBbt:00111272 fly_anatomy.ontology Dm11 VFB:FBbt_00111272 Distal medullary wide-field amacrine neuron whose cell body is located in the dorsal region of the cell body rind of the medulla. Its primary neurite extends beyond M6A layer, and then turns back, forming recurrent, columnar processes from M6A to M1, and into the first optic chiasm. The arbor varies in shape between cells, covering around 9 columns and showing tiling. The terminals of these cells in M6A collectively occupy the whole layer, whereas in the other layers the processes are thin, with each process occupying only one column, and being associated with R7 and R8 photoreceptor axons. There are around 70 Dm11 neurons per hemisphere. They are glutamatergic (Davis et al., 2020).