Lamina monopolar neuron l3
FBbt:00003721
Lamina monopolar neuron with short spines that project to one side of the main projection as it extends through the lamina (Fischbach and Dittrich, 1989; Kind et al., 2021). It terminates with an arborization in medulla layer M3 (Fischbach and Dittrich, 1989; Kind et al., 2021). In the lamina it is postsynaptic to the outer photoreceptors (R1-R6) (Rivera-Alba et al., 2011). It also receives input from the inner photoreceptors, partly in the first optic chiasm and partly in the medulla (Kind et al., 2021). It forms presynaptic terminals in medulla layer M3 (Takemura et al., 2008), with strong outputs to Mi9 and Tm20 (Takemura et al., 2013). It is a GABAergic neuron (Raghu et al., 2013). There is usually one of these cells per optic column (Nern et al., 2025).
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