part of overlaps has fasciculating neuron projection innervates develops from adult adult brain protocerebral bridge medial equatorial fascicle larval medial equatorial fascicle adult DM5 lineage neuron adult DM6 lineage neuron adult DM4 lineage neuron adult medial equatorial fascicle 2010-11-30T01:50:44Z fly_anatomy.ontology FBbt:00100342 This fascicle corresponds to the protocerebral bridge-lateral protuberance tract. The name was changed because the fascicle contains many fibers that are not derived from the protocerebral bridge and because the term protuberance is no longer used (Ito et al., 2014). Thick fascicle of the adult brain that emerges from cells in the medial posterior rind region below the mushroom body calyx (several lineages) and also contains fibers from the protocerebral bridge (Ito et al., 2014). It branches out in the region inferior-lateral to the fan-shaped body and demarcates the boundaries of the inferior bridge (lateral region), inferior clamp (superior-medial), superior posterior slope (superior region), gorget (superior region) and fan-shaped body (inferior-lateral region) (Ito et al., 2014). Similar to its larval counterpart, it contains components of the CM1/3/4 (DM4-6) and DPMpl3 lineages (Lovick et al., 2013; Hartenstein et al., 2015). protocerebral bridge - lateral protuberance tract MEF VFB:FBbt_00100342 adult median equatorial fascicle