Ключевые слова: 3d, absorption, artwork, bile, biology, bowel, cholesterol, colon, digestion, digestive, duodenum, enterocytes, enzymes, epithelial, epithelium, gastric, gastrointestinal, gluten, graphic, gut, illustration, intestinal, intestine, lining, lumen, medical, microvilli, mucosa, nutrients, rendering, science, system, tissue, tract, villi, villus,