Ключевые слова: anatomical, anatomy, body, cell, color, composition, design, diagram, digestion, digestive, digestive system, education, educational, esophagus, fine lines, health, healthy, human, illustration, increased, inside, intestines, learn, longitudinal, medical, medicine, orderly, organ, poster, pylorus, schematic, scheme, schemegastric wall, science, section, serosa, sphincter, stomach, structure, study, system, teacher, teaching, training, training material, under microscope, university, white background,