Transmedullary neuron tm4
FBbt:00003792
Transmedullary narrow field neuron that terminates in lobula layers 1, 2 and 4 with bleb-type arborizations, and with fine arborizations in layer 3. It displays fine arborizations in medulla layers M2, M3, M4 and M9, and has bleb-type arborizations in layers M2, M4, and M9 (Morante and Desplan, 2008; Fischbach and Dittrich, 1989). In the medulla, receives input from lamina monopolar neuron L2 and centrifugal neuron C3 (Takemura et al., 2013). In lobula layer 1, it outputs to T5 neurons (Shinomiya et al., 2014). It seems to be capable of both cholinergic and GABAergic neurotransmission. There is usually one of these cells per optic column (Nern et al., 2025).
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