Name the joint formed by the humerus and the scapula.

The joint formed by the humerus and the scapula is specifically referred to as the glenohumeral joint. This joint is a ball-and-socket type, allowing a wide range of motion for the shoulder. The humeral head fits into the glenoid cavity of the scapula, providing both stability and mobility that are essential for upper extremity activities.

This joint is crucial for a variety of movements, including lifting, throwing, and reaching, which are fundamental functions in many daily activities and sports. The structure of the glenohumeral joint, combined with the extensive range of motion it allows, highlights the intricacy of shoulder biomechanics and the importance of the rotator cuff muscles in maintaining stability during those movements.

In contrast, the other options refer to different joints that do not involve both the humerus and scapula in their articulation and therefore are not relevant in this context. The ulnar joint relates to the forearm, the elbow joint connects the humerus with the ulna and radius, and the wrist joint is formed by the radius with the carpal bones, none of which are formed between the humerus and scapula.