Ключевые слова: anatomy, aorta, awareness, bean, best friend, biology, blood, campaign, cartoon, commemoration, cross, day, diagnosis, excretory system, filter, friends, games, health, hide and seek, holiday, illustration, kidney, march, medical, medicine, month, nephrology, nephron, organ, pattern, play, postcard, poster, prevention, renal, shape, smile, support, tender, thursday, treatment, typography, ureter, urine, vein, vena cava, world, worldwide,