LT1 [FBbt_00003860]

Lobula tangential neuron that sends a thick projection into the proximal lobula that bifurcates, with the combined dendritic arbors of both branches spanning the entire tangential extent of lobula layer 2 (Fischbach and Dittrich, 1989; Tanaka and Clark, 2022). Its axon innervates the ventrolateral protocerebrum (Otsuna and Ito, 2006). There are approximately four of these cells per hemisphere (Tanaka and Clark, 2022).
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LT1 LT1 LT1 LT1

LT1

ID: FBbt_00003860

Adult Nervous system Neuron Visual system

Lobula tangential neuron that sends a thick projection into the proximal lobula that bifurcates, with the combined dendritic arbors of both branches spanning the entire tangential extent of lobula layer 2 (Fischbach and Dittrich, 1989; Tanaka and Clark, 2022). Its axon innervates the ventrolateral protocerebrum (Otsuna and Ito, 2006). There are approximately four of these cells per hemisphere (Tanaka and Clark, 2022).

Pre- versus postsynaptic innervation judged by scoring of terminal morphology from figures in Fischbach and Dittrich (1989). Nern et al. (2025) - FBrf0262545 split this into LT1a, LT1b, LT1c and LT1d, but these subtypes were not identified at light level.

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## Classification

Relationships

Alternative Names

Synonym Scope Reference
lobular tangential neuron 1 exact synonym Fischbach and Dittrich, 1989
lobular tangential neuron LT1 exact synonym
LT1 exact synonym
LT1 exact synonym Scheffer et al., 2020