TmY19b [FBbt_20011498]

Adult transmedullary Y neuron of the TmY19b group (Nern et al., 2025). It receives input in the ipsilateral lobula layer 2, lobula layer 3, lobula layer 4, lobula layer 5A and lobula layer 5B (Nern et al., 2025). It sends output to the ipsilateral lobula layer 2, lobula layer 3, lobula layer 4 and lobula layer 5A (Nern et al., 2025). Its predicted neurotransmitter is GABA (Eckstein et al., 2024; Nern et al., 2025). There are approximately 20 of these cells per hemisphere (Nern et al., 2025).

Tags:

TmY19b

ID: FBbt_20011498

Adult GABAergic Nervous system Visual system

Cell type identified in multiple EM datasets and at light level (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 2, lobula layer 3, lobula layer 4, lobula layer 5A, lobula layer 5B
sends synaptic output to region: lobula layer 2, lobula layer 3, lobula layer 4, lobula layer 5A

Alternative Names

Synonym	Scope	Reference
TmY19b	exact synonym	Nern et al., 2025
TmY19b	exact synonym	Berg et al., 2025
LMa3	exact synonym	Bates et al., 2025
LMa3	exact synonym	Schlegel et al., 2024
LMa3	related synonym	Nern et al., 2025
LMa3	related synonym	Matsliah et al., 2024
LMa3	exact synonym

List all available images of TmY19b (93 total)

Thumbnail	Name	Tags
	TmY19b_L (MaleCNS:16900)	Nervous_system, Visual_system, Adult, GABAergic
	TmY19b_L (MaleCNS:24256)	Nervous_system, Visual_system, Adult, GABAergic
	TmY19b_R (MaleCNS:19908)	Nervous_system, Visual_system, GABAergic, Adult
	TmY19b_R (MaleCNS:21439)	Nervous_system, Visual_system, Adult, GABAergic
	TmY19b_R (MaleCNS:21439)	Nervous_system, Visual_system, Adult, GABAergic