FB2026_03 , released September 17, 2026
CV Term Report
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Term posterior maxillary sensory center ID (Ontology) FBbt:00040056 (Fly Anatomy)
Definition 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).[ FlyBase:FBrf0211916 FlyBase:FBrf0224194 FlyBase:FBrf0237251 ]
Also Known As"adult ACSC" ; "adult anterior central sensory column" ; "PMS"
CommentBitter-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).
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VFB:FBbt_00040056
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synaptic neuropil subdomain__
adult subesophageal zone_____|
                             adult sensory region of subesophageal zone
                              |__posterior maxillary sensory center
                                  |__posterior maxillary sensory center zone 1
                                  |__posterior maxillary sensory center zone 2
                                  |__posterior maxillary sensory center zone 3
                                  |__posterior maxillary sensory center zone 4
                                  |__posterior maxillary sensory center zone 5
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Is a adult sensory region of subesophageal zone
Develops from larval anterior central sensory compartment
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VFB:FBbt_00040056