The humerus is a long bone that extends from the shoulder joint to the elbow joint. The humerus serves as a crucial link between the shoulder and the forearm, allowing for a wide range of arm movements. It is responsible for actions such as flexion, extension, rotation, and abduction of the arm. The humerus also provides attachment sites for various muscles involved in arm and shoulder movement, contributing to overall strength and function. Additionally, the humerus plays a role in transmitting forces from the upper body to the forearm, assisting in activities such as lifting and carrying objects.

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