larval pair1 neuron obsolete larval SEZ descending neuron 1 2020-05-26T14:25:30Z https://github.com/FlyBase/drosophila-anatomy-developmental-ontology/issues/1521 true fly_anatomy.ontology larval SEZ-DN1 Obsoleted due to equivalence with pair1 neuron (Lee et al., 2022 - FBrf0253736) FBbt:00049519 Larval descending neuron with its soma in the subesophageal zone (Tastekin et al., 2018). It is activated by the PDM descending neuron in the subesophageal zone and descends to the most posterior abdominal segments, where it synapses onto excitatory premotor A27h neurons (Tastekin et al., 2018). It ceases forward locomotion by inhibiting the initiation of new peristaltic waves in posterior abdominal segments (Tastekin et al., 2018). There is one of these neurons per hemisphere and it is GABAergic (Tastekin et al., 2018). larval subesophageal zone descending neuron 1