posterior maxillary sensory center [FBbt_00040056]

posterior maxillary sensory center

ID: FBbt_00040056

Region spanning the adult tritocerebrum and mandibular neuromere that contains terminals of sensory neurons that enter the brain via the anterior intermediate root of the maxillary-labial nerve and the anterior and medial roots of the pharyngeal nerve (Miyazaki and Ito, 2010). Five distinct subregions can be identified: a horn-like protrusion in the dorsolateral GNG (PMS1), a dorsal medial region (PMS2), a ventral medial region (PMS3), a zone near the entry point of the labial nerve (PMS4) and a zone ventral to PSM3 (PSM5) (Miyazaki and Ito, 2010). It arises from the larval anterior central sensory compartment (Kendroud et al., 2018).

Bitter-sensitive neurons of the labellum sensilla (identified with Gr32a-, Gr66a- and NV4-GAL4) terminate in PMS1-3 zones. Subsets of Gr66a-GAL4 positive neurons terminated in specific subareas of these zones. Water-sensitive neurons (identified with NP1017-GAL4) and sugar-sensitive neurons (identified with Gr5a-GAL4) terminate in PMS4-5 zones (Miyazaki and Ito, 2010).