fasciculates with synapsed_via_type_Ib_bouton_to sends synaptic output to cell muscle cell of A1-7 dorsal acute muscle 2 larval DA2 motor neuron abdominal segment motor neuron larval A1-7-innervating DA2 motor neuron MN-DA2 neuron This motor neuron is an exception to the class of motorneurons that innervate the internal dorsal muscles whose dendrites occupy the lateral neuropil; it has dendrites in the intermediate and lateral regions (Mauss et al., 2009). Previously thought to correspond to the U2 neuron based on personal communication from Matthias Landgraf - FBrf0221138, but shown to be U3 by Meng et al. (2019). A1-7 U3 motor neuron MN2-Ib FBbt:00110223 abdominal A1-7 DA2 motor neuron fly_anatomy.ontology FBbt:00002311 Larval DO1 motor neuron that innervates a muscle of segments A1-7. Its dendritic arborization occupies the lateral and intermediate domains of the ventral nerve cord neuropil. It exits the ventral nerve cord via the anterior root of the intersegmental nerve and innervates the DA2 muscle with type Ib boutons (Landgraf et al., 1997; Hoang and Chiba, 2001). The muscle it innervates is one segment posterior to its soma (Zarin and Labrador, 2019). VFB:FBbt_00002311 larval abdominal intersegmental nerve motor neuron larval anterior intersegmental nerve root of A1-7 larval lateral A1-7-innervating ISN motor neuron