Ключевые слова: abstract, anatomy, artery, background, biology, blood, body, care, color, concept, cortex, cross section, day, diagram, digital, education, effects, fibrous, gland, health, health care, healthy, human, human kidney, illustration, internal, kidney, kidney day, medical, modern, nephrology, object, organ, part, physical, physiology, renal, science, scientific, section, study, symbol, technology, ureter, vein, vessel, world kidney day,