has soma location receives synaptic input in region sends synaptic output to region adult optic lobe neuron medulla layer M4 medulla layer M5 medulla layer M6 medulla serpentine layer medulla layer M8 medulla tangential neuron medulla tangential neuron Mt7 Pre- versus postsynaptic innervation judged by scoring of terminal morphology from figures in Fischbach and Dittrich (1989) as assessed by FlyBrain Neuron DB. The neurotransmitter was assessed by the intersection of the expression of the VGAT-GAL4 driver (FBtp0069181) and an antibody against GABA (Raghu et al., 2013). VFB:FBbt_00003843 fly_anatomy.ontology medullary tangential neuron Mt7 Medulla tangential neuron that enters the medulla through its proximal face at the level of the serpentine layer. It shows extensive fine and bleb-like arborizations in medulla layers M4, M5, M6, the serpentine layer and M8. It is a GABAergic neuron. FlyBrain_NDB:10030 Mt7 FBbt:00003843 Mt7 visual system neuron adult GABAergic neuron cell body rind of adult medulla