receives synaptic input in region sends synaptic output to region medulla layer M1 medulla layer M4 medulla layer M5 medulla layer M9 medulla layer M10 transmedullary Y neuron transmedullary neuron Tm3Y FlyBrain_NDB:10154 Tm3Y fly_anatomy.ontology FBbt:00003830 Tm3Y Pre- versus postsynaptic innervation judged by scoring of terminal morphology from figures in Fischbach and Dittrich (1989) as assessed by FlyBrain Neuron DB. VFB:FBbt_00003830 Transmedullary neuron that terminates in lobula layer 4 with bleb-like terminal arborizations. It has fine arborizations in medulla layers M1, M4, and M5, and has bleb-type arborization in medulla layers M1, M4, M9 and M10. It differs from the transmedullary neuron Tm3 or TmY3 in that an individual of a retinotopic set may or may not form branches in the lobula plate. lobula layer 3 lobula layer 4 lobula plate layer 1