larval Saaghi 1 neuron [FBbt_00111659]
Larval GABAergic premotor neuron (Zarin et al., 2019) that is relatively late-born in the NB5-2 Notch ON primary hemilineage (Mark et al., 2021). Its primary neurite extends into the neuromere forming one arbor that extends anteriorly. One neurite crosses the midline and forms a terminal arbor that extends in a circular manner. It outputs to contralateral ventral and dorsal motorneurons. There is of these one neurons per hemisegment. These neurons were identified in two EM reconstructions: one of the full CNS of a 6h old first instar larva, and another of abdominal segment 3 of a 12-24h old first instar larva. Only bilateral connections are reported. The number of identified input synapses in A1 was the following (number in brackets left/right): from A08e1 (2/3), from A08e2 (2/6), from A08e3 (4/5). The number of identified output synapses in A1 was the following (number in brackets left/right): to ventral motoneurons (33/15), to lateral motoneurons (2/8), to dorsal motoneurons (34/37). It is still not known if the pattern of connections is the same in the other abdominal segments (Heckscher et al., 2015).
Note
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VFB Term Json
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