The "Upper Limb" refers to the part of the human body that includes the arm, forearm, wrist, and hand. It is composed of bones such as the humerus, radius, and ulna, which provide structure and support. The upper limb is essential for a wide range of movements and functions, including reaching, grasping, and manipulating objects. Muscles in the upper limb, such as the biceps and triceps, enable movement and strength. The upper limb also contains nerves, like the brachial plexus, which transmit signals between the brain and the arm. Overall, the upper limb plays a crucial role in daily activities and interactions with the environment.