simple arm model

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The human body has a basic arm structure that resembles a mechanical arm model. This simplistic representation serves as a fundamental starting point for understanding how our arms function. In this simplified context, the arm is comprised of three main sections: the scapula, the humerus, and the forearm. These components work in unison to facilitate various movements such as flexion, extension, abduction, and rotation. The human arm model can be broken down into several key parts including the clavicle or collarbone, which serves as a connection point between the shoulder and arm bones. The scapula or shoulder blade is the flat bone that lies at the base of the neck and provides a surface for muscles to attach to. Moving down the arm, we find the humerus or upper arm bone, which connects the scapula to the elbow joint. At the elbow, the radius and ulna bones form a hinge-like structure allowing for flexion and extension movements. The forearm contains two long bones: the radius and the ulna. The radius is located on the thumb side of the forearm, while the ulna lies on the pinky finger side. These two bones work together to enable rotation and pronation/supination movements in the wrist. Finally, at the end of the arm we have the hand. This consists of the carpal bones, metacarpals, and phalanges, which provide a foundation for grasping objects and manipulating tools.