TmY19a [FBbt_20011497]

Adult transmedullary Y neuron of the TmY19a group (Nern et al., 2025). It receives input in the ipsilateral medulla layer M9, medulla layer M10, lobula layer 1, lobula layer 2 and lobula layer 3 (Nern et al., 2025). It sends output to the ipsilateral medulla layer M9, medulla layer M10, lobula layer 2 and lobula layer 3 (Nern et al., 2025). Its predicted neurotransmitter is GABA (Eckstein et al., 2024; Nern et al., 2025). There are approximately 43 of these cells per hemisphere (Nern et al., 2025).

Tags:

TmY19a

ID: FBbt_20011497

Adult GABAergic 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 1, lobula layer 2, lobula layer 3, medulla layer M10, medulla layer M9
sends synaptic output to region: lobula layer 2, lobula layer 3, medulla layer M10, medulla layer M9

Alternative Names

Synonym	Scope	Reference
TmY19a	exact synonym	Nern et al., 2025
TmY19a	exact synonym	Berg et al., 2025
LMa4	related synonym	Nern et al., 2025
LMa4	related synonym	Matsliah et al., 2024
TmY19a	exact synonym

List all available images of TmY19a (205 total)

Thumbnail	Name	Tags
	TmY19a_L (MaleCNS:42202)	Nervous_system, Visual_system, Adult, GABAergic
	TmY19a_R (MaleCNS:18689)	Nervous_system, Visual_system, GABAergic, Adult
	TmY19a_R (MaleCNS:24967)	Nervous_system, Visual_system, GABAergic, Adult
	TmY19a_R (MaleCNS:25753)	Nervous_system, Visual_system, GABAergic, Adult
	TmY19a_R (MaleCNS:29385)	Nervous_system, Visual_system, GABAergic, Adult