descending neuron of the posterior brain DNp11 obsolete antennal mechanosensory and motor center AMMC Db3 neuron 2016-03-04T15:53:02Z true Obsoleted due to equivalence with DNp11 (Sturner et al., 2025 - FlyBase:FBrf0262850). FBbt:00111495 Descending bilateral neuron whose cell body is located in the cell body rind on the posterior region of the inferior posterior slope (IPS). The primary neurite extends anterodorsally and branches in the posterior region of the posterior ventrolateral protocerebrum (PVLP). The lateral branch extends to the lobula and forms postsynaptic terminals. The ventral branch forms a dense arbor with postsynaptic terminals that includes the ipsilateral antennal mechanosensory and motor center (AMMC) zone B, wedge, anterior and posterior ventrolateral protocerebrum (AVLP and PVLP), including the glomerulus targeted by LC4 neurons and the non-glomerular regions, and posterior lateral protocerebrum (PLP). A thin neurite projects medially and fasciculates with the great commissure. Contralaterally, it turns ventrally and forms presynaptic terminals in the saddle and bilaterally in the posterior gnathal ganglion. It then exits the brain, projecting into the thoracic-abdominal ganglion. There are three subtypes, which innervate additional neuropils ipsilaterally. fly_anatomy.ontology