has soma location has soma location enteric neuron secretomotor/vasodilator neuron of myenteric plexus 2026-03-10T14:42:58Z GitHub Copilot VIP-positive secretomotor neuron PSVN An enteric neuron whose soma resides in the myenteric plexus and which controls mucosal secretion and blood flow by innervating secretory epithelia and submucosal blood vessels. This neuron is characterised by expression of vasoactive intestinal peptide (VIP). In mouse, two Glp2r+ subtypes have been identified: PSVN1 (VIP+, non-cholinergic) and PSVN2 (ChAT+, cholinergic). In human, only the VIP+ non-cholinergic subtype has been detected. myenteric nerve plexus