Which muscles do extension of hand at wrist against gravity? 2. Which nerve innervates these muscles 3. Where does it pass in regards to the elbow? 4. Is it likely to be injured with a supracondylar fracture of the distal humerus?

Your musculoskeletal system includes your bones, cartilage, ligaments, tendons and connective tissues. Your skeleton provides a framework for your muscles and other soft tissues. Together, they support your body's weight, maintain your posture and help you move.