Tm5b [FBbt_00110073]

Transmedullary Tm5 neuron that extends two or three vertical main dendritic branches in the medulla, spanning around five columns, from which branches spread laterally into layers M3, M6 and M8 (Kind et al., 2021). It receives most of its inner (R7/R8) photoreceptor input from the R7 photoreceptors of pale ommatidia (Kind et al., 2021). Its axon innervates lobula layer 5 (Kind et al., 2021). It provides input to the lobula intrinsic neuron Li4 via many synapses (Lin et al., 2016). It is a cholinergic neuron (Karuppudurai et al., 2014).
Tm5b Tm5b Tm5b Tm5b

Tm5b

ID: FBbt_00110073

Adult Cholinergic Nervous system Visual system secondary neuron

Transmedullary Tm5 neuron that extends two or three vertical main dendritic branches in the medulla, spanning around five columns, from which branches spread laterally into layers M3, M6 and M8 (Kind et al., 2021). It receives most of its inner (R7/R8) photoreceptor input from the R7 photoreceptors of pale ommatidia (Kind et al., 2021). Its axon innervates lobula layer 5 (Kind et al., 2021). It provides input to the lobula intrinsic neuron Li4 via many synapses (Lin et al., 2016). It is a cholinergic neuron (Karuppudurai et al., 2014).

The neurotransmitter was assessed by immunohistochemistry (Karuppudurai et al., 2014). Connectivity in the lobula was assessed by GRASP and double-labeling EM (Lin et al., 2016). Photoreceptor input determined from EM (Kind et al., 2021).

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## Classification

Relationships

Alternative Names

Synonym Scope Reference
Tm5b exact synonym Bates et al., 2025
Tm5b exact synonym Berg et al., 2025
Tm5b exact synonym Nern et al., 2025
Tm5b exact synonym Schlegel et al., 2024
Tm5b exact synonym Özel et al., 2021
Tm5b exact synonym

List all available images of Tm5b (1313 total)

Thumbnail Name Tags
Tm5b_L (MaleCNS:103080) secondary_neuron, Nervous_system, Visual_system, Adult, Cholinergic
Tm5b_R (MaleCNS:134673) secondary_neuron, Nervous_system, Visual_system, Adult, Cholinergic
Tm5b_R (MaleCNS:83235) secondary_neuron, Nervous_system, Visual_system, Adult, Cholinergic
Tm5b_R (MaleCNS:95408) secondary_neuron, Nervous_system, Visual_system, Adult, Cholinergic
Tm5b_R (MaleCNS:95408) secondary_neuron, Nervous_system, Visual_system, Adult, Cholinergic

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Expression patterns overlapping Tm5b (1 total)

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P{GawB}MzVum expression pattern Expression_pattern

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Transgene expression in Tm5b (1 total)

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P{GawB}MzVum expression pattern Expression_pattern

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Downstream connectivity classes for Tm5b (377 total)

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Upstream connectivity classes for Tm5b (313 total)

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