Ключевые слова: 3d, anatomy, body, cell, ciliated, columnar, digestive, duodenum, education, epithelium, histology, human, ileum, illustration, intestine, isolated, jejunum, layer, medical, medicine, microbiology, mucus, nucleus, poster, pseudostratified, research, stomach, system, text, tissue, title, trachea, tract, white background,