fasciculates with sends synaptic output to cell muscle cell of proboscis muscle 13 adult labial nerve adult labial motor neuron proboscis muscle 13 motor neuron 2021-03-30T05:45:55Z proboscis motor neuron mn13 VFB:FBbt_00051194 fly_anatomy.ontology Motor neuron that innervates proboscis muscle 13, which opens the junction between the salivary duct and the pharynx in the rostrum (McKellar et al., 2020). Its soma is found in a ventral part of the cell body rind of the subesophageal zone (McKellar et al., 2020). It arborizes in the dorsal subesophageal zone, with its dendrites extending to the esophageal foramen, and exits the brain via the labial nerve (McKellar et al., 2020). FBbt:00051194 rostrum muscle motor neuron