Ключевые слова: abdomen, anatomy, appendicitis, autoimmune, background, bowel, canal, cancer, care, colon, copy, department, diagnostic, digestive, disease, doctor, education, gastroenterologist, gastroenterology, health, human, illness, internal, intestine, learn, medical, medicine, model, nobody, object, organ, physician, rectum, science, service, space, study, surgery, system, table, teach, test, text, top, training, treatment, tumor, ulcer, view, wooden,