Ключевые слова: ache, age, aging, anatomy, arthritis, biology, body, bone, bony rarefication, care, cartilage, condition, density, diagram, disease, femur, fracture, health, healthcare, healthy, hip, human, human health, illustration, joint, leg, loss, medical, medicine, old, orthopedic, osteopathy, osteopenia, osteoporosis, osteoporotic, pain, problem, rheumatism, science, severe, skeletal, skeleton, spongy, structures, surgery, system, thigh, thigh bone, thin, white background,