Ключевые слова: anatomical, anatomy, bacillus, bacteria, bacterium, body, canal, cancer, coli, diagnosis, digestion, disease, doctor, environment, flora, gastrointestinal, health, healthy, hospital, human, illness, illustration, infection, internal, large, medical, medicine, microbe, microbiology, microscopic, organ, pain, probiotic, stomach, structure, system, tract, virus,