The small intestine.
D000328:Adult; D000367:Age Factors; D000368:Aged; D000818:Animals; D002446:Celiac Disease / Q000453:epidemiology / Q000378:metabolism / Q000628:therapy; D003424:Crohn Disease / Q000453:epidemiology / Q000628:therapy; D004040:Dietary Carbohydrates / Q000378:metabolism; D004041:Dietary Fats / Q000378:metabolism; D004044:Dietary Proteins / Q000378:metabolism; D004240:Diverticulum / Q000453:epidemiology / Q000628:therapy; D004617:Embolism / Q000175:diagnosis; D005769:Gastrointestinal Motility; D006801:Humans; D007408:Intestinal Absorption; D007410:Intestinal Diseases / Q000150:complications / Q000175:diagnosis / Q000378:metabolism / Q000628:therapy; D007421:Intestine, Small / Q000098:blood supply / Q000378:metabolism / Q000473:pathology / Q000502:physiology / Q000528:radiation effects; D008286:Malabsorption Syndromes / Q000453:epidemiology / Q000378:metabolism; D008638:Mesenteric Arteries; D008641:Mesenteric Vascular Occlusion / Q000175:diagnosis; D008875:Middle Aged; D008903:Minerals / Q000378:metabolism; D051381:Rats; D011919:Rats, Inbred Strains; D013927:Thrombosis / Q000175:diagnosis; D014456:Ulcer / Q000175:diagnosis; D014815:Vitamins / Q000378:metabolism
D004040:Dietary Carbohydrates; D004041:Dietary Fats; D004044:Dietary Proteins; D008903:Minerals; D014815:Vitamins