part of part of in taxon Pleocyemata functional part of brain stomatogastric nervous system median ventricular nerve (sensu Cancer borealis) Most of the efferent fibers leaving the stomatogastric ganglion and leading to the gastric mill or pyloric stomach muscles run posteriorly in the dorsal median ventricular nerve. This nerve branches bilaterally into the right and left lateral ventricular nerves (LVN) which go to their respective sides of the stomach. MVN (sensu Cancer borealis) UBERON:8910023