Ключевые слова: adult, aging process, alzheimers disease, anatomy, arthritis, black color, blue, care, cartilage, femur, fibula, film, front view, healthcare and medicine, horizontal, human body part, human bone, human knee, human leg, human limb, human skeleton, human spine, illness, image, joint body part, letter x, limb, medical scan, medical xray, narrow, osteoarthritis, osteopath, osteoporosis, pain, patient, physical injury, ray fish, senior adult, surgery, thigh, tibia, xray image,