Ключевые слова: anatomy, background, biology, biopsy, blood, cell, columnar epithelium, connective, connective tissue, digestive, disease, epithelium, filter, gland, health, hepatic, hepatitis, histology, hpv, illness, kidney, light microscope, liver, lysosome, medulla, microscopic, microscopy, muscle tissue, nucleus, obesity, organs, pain, pancreas, pathologist, pathology, physiology, pink, renal, science, slide, spleen, squamous, stenosis, structure, study, sublingual, system, tissue, tubules, urinary,