"팔" is the Korean word for "arm." It refers to the upper limb of the human body, extending from the shoulder to the wrist. The arm consists of several parts, including the upper arm, forearm, elbow, and hand. It plays a crucial role in various activities, such as lifting, reaching, and holding objects. In anatomy, the arm is made up of bones, muscles, tendons, and ligaments. The main bone in the upper arm is the humerus, while the forearm contains two bones: the radius and ulna. The arm's muscles, including the biceps and triceps, enable movement and strength.