Final answer:
The humerus, ulna, and radius make up the upper limb but are not weight-bearing bones. They articulate at the elbow but not directly with carpal bones. Injuries can affect movement and may require surgical intervention.
Step-by-step explanation:
The humerus, ulna, and radius are the main bones of the upper limb but are not weight-bearing. The radius is located on the lateral side of the forearm and articulates with the humerus at the elbow. The ulna is found on the medial side and also articulates with the humerus at the elbow. Neither the radius nor the ulna articulates with the carpal bones directly. Injuries to these bones can lead to issues with movement and may require surgery to stabilize the bones for proper healing, as in the case of fractures.
Articulations between these bones allow for movements such as supination and pronation. The forearm region, extending from the elbow to the wrist, contains both the radius and ulna bones and plays a critical role in the movement and function of the upper limb.