Ключевые слова: anatomical, anatomy, arm, arthrosis, background, bend, bending, biology, body, bone, bones, cartilage, chiropractic, clavicle, collarbone, education, educational, fashion model, flex, flexibility, flexible, health, healthy, human, injury, isolated, joint, learning, medical, medicine, motion, move, orthopedic, osteoporosis, pain, physical, rheumatism, rotatable, science, scientific, shoulder, shoulder joint, shoulder pain, skeletal, skeleton, study, surgery, tendon, tendons, white,