Final answer:
The fibula does not connect to the elbow joint, which is formed by the articulation of the ulna, humerus, and radius.
Step-by-step explanation:
The bone that does NOT connect to the elbow joint is the fibula. The elbow joint is comprised of three bones: the ulna, which is found on the medial side of the forearm; the humerus, which is the single bone of the upper arm and does not articulate with any of the carpal bones; and the radius, located on the lateral side of the forearm. The ulna and the humerus articulate at the elbow joint, with the region of the humerus known as the trochlea connecting with the ulna, and the capitulum of the humerus articulating with the head of the radius.