HSN [FBbt_00003918]

Horizontal system neuron whose dendritic arbor extends over the dorsal lobula plate (Scott et al., 2002). The area covered by its dendrite corresponds to the center of the large dorsal field of vision. It is electrically coupled to HSE and HSS (Schnell et al., 2010). There is one of these cells on each side (Shinomiya et al., 2022).
Tags:
HSN HSN HSN HSN

HSN

ID: FBbt_00003918

Adult Nervous system Neuron Visual system

Horizontal system neuron whose dendritic arbor extends over the dorsal lobula plate (Scott et al., 2002). The area covered by its dendrite corresponds to the center of the large dorsal field of vision. It is electrically coupled to HSE and HSS (Schnell et al., 2010). There is one of these cells on each side (Shinomiya et al., 2022).

Electrical coupling was shown indirectly by neurobiotin dye coupling in HSN and HSE cells labelled using the P{GawB}CG1090[NP0282] (FBti0033586) driver (Schnell et al., 2010). Due to their morphology and functional similarity, this cell is judged to be homologous to the dorsal horizontal system cell in larger flies (Heisenberg et al., 1978; Rajashekhar and Shamprasad, 2004; Scott et al., 2002).

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## Classification

Relationships

Alternative Names

Synonym Scope Reference
dorsal horizontal neuron exact synonym Fischbach and Dittrich, 1989
HS north exact synonym Scott et al., 2002
horizontal system north cell exact synonym Shinomiya et al., 2022
HSN exact synonym Fischbach and Dittrich, 1989
horizontal system north exact synonym Kim et al., 2015
LPT01 exact synonym
HSN exact synonym Schlegel et al., 2024
HSN exact synonym Nern et al., 2025
HSN exact synonym Scheffer et al., 2020