part of innervates adult brain adult lateral horn primary neurite tract adult posterior ventral primary neurite tract 3 2020-04-29T12:00:00Z FBbt:00049290 VFB:FBbt_00049290 PVL10 adult PV3 primary neurite tract fly_anatomy.ontology Primary neurite tract of the posterior ventral (PV) adult brain in the third clockwise position (from posterior perspective), from ventrolateral to dorsal to ventromedial, of PV tracts that enter the lateral horn (Frechter et al., 2019). Lateral horn neurons that enter the neuropil via this tract are predominantly output neurons (Frechter et al., 2019).