TmY21 [FBbt_20011499]

Adult transmedullary Y neuron of the TmY21 group (Nern et al., 2025). It receives input in the ipsilateral medulla and lobula layer 5B (Nern et al., 2025). It sends output to the ipsilateral medulla and lobula (Nern et al., 2025). Its predicted neurotransmitter is acetylcholine (Eckstein et al., 2024; Nern et al., 2025). There are approximately 165 of these cells per hemisphere (Nern et al., 2025).

Tags:

TmY21

ID: FBbt_20011499

Adult Cholinergic Nervous system Visual system

Cell type identified in multiple EM datasets (Matsliah et al., 2025; Schlegel et al., 2024; Dorkenwald et al., 2024; Nern et al., 2025). Synapse locations are given where each cell of this type in neuprint has at least 10 connections. Other information from Nern et al. (2025) supplements.

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## Classification

Relationships

receives synaptic input in region: lobula layer 5B, medulla
sends synaptic output to region: lobula, medulla

Alternative Names

Synonym	Scope	Reference
Tm36	exact synonym	Schlegel et al., 2024
TmY21	exact synonym	Berg et al., 2025
TmY21	exact synonym	Nern et al., 2025
Tm36	exact synonym	Bates et al., 2025
TmY21	exact synonym
Tm36	related synonym	Matsliah et al., 2024
Tm36	related synonym	Nern et al., 2025

List all available images of TmY21 (867 total)

Thumbnail	Name	Tags
	TmY21_L (MaleCNS:36198)	Nervous_system, Adult, Visual_system, Cholinergic
	TmY21_L (MaleCNS:36763)	Nervous_system, Adult, Visual_system, Cholinergic
	TmY21_R (MaleCNS:42576)	Nervous_system, Adult, Visual_system, Cholinergic
	TmY21_R (MaleCNS:47445)	Nervous_system, Adult, Visual_system, Cholinergic
	TmY21_R (MaleCNS:73276)	Nervous_system, Adult, Visual_system, Cholinergic