상지 is a term that refers to the upper limbs of the human body, specifically the arms and hands. It includes the shoulders, elbows, wrists, and fingers, which are essential for various functions such as lifting, holding, and manipulating objects. The structure of the 상지 allows for a wide range of motion and dexterity. In anatomy, the 상지 is composed of bones, muscles, tendons, and ligaments. Key bones include the humerus, radius, and ulna. The muscles in the 상지, such as the biceps and triceps, enable movement and strength. Proper functioning of the 상지 is crucial for daily activities and overall physical health.