obsolete 4-2Mar true CoR FBbt:00001550 fly_anatomy.ontology Three motor neurons are identified as CoR neurons: MN-VA1, MN-VA2 and MN-VA3 ((Landgraf et al., 1997; Schmid et al., 1999). However, these do not fasciculate with the ISN nerve, but with the SNc branch instead. For this reason this term was obsoleted. Motor neuron of the NB4-2 lineage that projects ipsilaterally and posteriorly through the anterior root of the intersegmental nerve and innervates muscles of the ventral external oblique group. larval A1-7-innervating VA1 motor neuron larval VA2 motor neuron larval VA3 motor neuron