abnormal enteric nervous system morphology enteric nervous system dysplasia any structural anomaly of the part of the autonomic nervous system that innervates the gastrointestinal tract, the pancreas, and the gallbladder and can autonomously sense the tension and the chemical environment in the gut and regulate blood vessel tone, motility, secretions, and fluid transport MP:0001044 enteric nervous system abnormalities MPheno.ontology abnormal autonomic nervous system morphology