human stomach anatomy digestion, concept of the intestine, from the mouth to the intestines, laxative, constipation

abdomen acid anatomical anatomy art biology burning care carving clothing concept constipation costume diagram diet dieting digesting digestion digestive duodenum eating enzymes esophageal esophagus fat fluid food gastric gastrointestinal glass glasses head healthy human hydrochloric indigestion internal intestine intestines iron juice juices large laxative lighting lining longitudinal machine medicine mouth mucosa mucosal organ pain person pits process proteins pyloric reander render sculpture sphincter statue stomach stomache swallowing system toy tract traitement ulcer vehicle wheel