title: Endogenous opiates and the digestive system.
mesh_terms: D000818:Animals; D001921:Brain / Q000378:metabolism; D004064:Digestive System / Q000187:drug effects*; D004285:Dogs; D004723:Endorphins / Q000378:metabolism / Q000494:pharmacology*; D004745:Enkephalins / Q000494:pharmacology; D005750:Gastric Juice / Q000378:metabolism; D005753:Gastric Mucosa / Q000098:blood supply; D005769:Gastrointestinal Motility / Q000187:drug effects; D006168:Guinea Pigs; D006801:Humans; D007413:Intestinal Mucosa / Q000378:metabolism; D009020:Morphine / Q000494:pharmacology; D010189:Pancreatic Juice / Q000378:metabolism; D012039:Regional Blood Flow / Q000187:drug effects; D013270:Stomach / Q000502:physiology
chemical_list: D004723:Endorphins; D004745:Enkephalins; D009020:Morphine