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Elbow, tip of the: The bony tip of the elbow is called the olecranon. It is formed by the near end of the ulna, one of the two long bones in the forearm (the other is the radius).The triceps muscle tendon of the back of the arm attaches to the tip of the elbow (the olecranon). Diseases can affect the olecranon.For example, inflammation of the tiny fluid-filled sac (bursa) at the tip of the elbow van occur; it is referred to as olecranon bursitis.And also, for example, a firm nodule can form at the tip of the elbow; it is referred to as an olecranon nodule (and can be found in gout or rheumatoid arthritis).he triceps muscle tendon of the back of the arm attaches to the tip of the elbow (the olecranon). Diseases can affect the olecranon. For example, inflammation of the tiny fluid-filled sac (bursa) at the tip of the elbow van occur; it is referred to as olecranon bursitis.
It connects to the thumb side of the wrist. The radius is bigger and longer than the ulna which is on the inside, or medial side, of the forearm closest to the body. The bony point of the elbow, that most people think of as the elbow, is actually the tip the ulna bone. The radius and ulna connect to the humerus bone of the upper arm at the elbow joint. Thehe elbow joint consists of a series of muscles or ligaments acting like a hinge so you can bend and straighten your arm. This is bending and straighten is called flexing and extending the arm, respectively.