this notch is called the olecranon process; it articulates behind the humerus in the olecranon fossa and may be felt as the point of the elbow.
What muscle is in the olecranon?
The olecranon (olecranon process) of the ulna is the most proximal part of the bone. It is a massive, blunt process. The triceps brachii muscle, the primary extensor of the forearm, inserts on the tuberosity of the process.
Is the olecranon part of the elbow?
Olecranon fracture: The olecranon is the bony tip of the elbow and part of the ulna. You can see the olecranon when you bend your arm. Olecranon fracture is one of the most common elbow fractures, because the bone is not protected by soft tissue such as tendons, muscles or ligaments.
What is an olecranon?
An olecranon (oh-LEK-rah-nun) fracture is a break in the bony tip of the elbow. This pointy segment of bone is part of the ulna, one of the three bones that come together to form the elbow joint.
What is the function of olecranon?
The olecranon serves as a lever for the extensor muscles that straighten the elbow joint.
Is the olecranon the funny bone?
Description. An olecranon fracture is a break of the bony protrusion at the elbow, known as the “funny bone.” Located at the end of the lower arm bone (the ulna), an olecranon fracture may be treated non-surgically or surgically, depending on the injury.
What is the function of the olecranon process of the ulna?
Structure and Function of the Elbow and Forearm Complex
5.4 and 5.5) has a thick proximal end with distinct processes. The olecranon process is the large, blunt, proximal tip of the ulna. The rough posterior surface of the olecranon process is the distal attachment for the triceps muscles.
What is the part under your elbow called?
Technically, you can refer to the area as the antecubital fossa. Antecubital is an adjective meaning “of or relating to the inner or front surface of the forearm” (in Latin ante means “before” and cubitum means “elbow”). Fossa is a Medieval Latin borrowing that is used for an anatomical pit, groove, or depression.
Is an olecranon fracture painful?
The olecranon is located under the skin of the elbow, without much protection from muscles or other soft tissues. It can break easily if you experience a direct blow to the elbow or fall on an outstretched arm. A fracture can be very painful and make elbow motion difficult or impossible.
What is the elbow bone called?
The elbow is where the two bones of the forearm – the radius on the thumb side of the arm and the ulna on the pinky finger side – meet the bone of the upper arm — the humerus.
How common are olecranon fractures?
The incidence is 12 per 10,000 [4]. The mean age of occurrence is 57, with males more likely to sustain an injury at a younger age. These injuries are frequently associated with concomitant elbow injuries, most frequently to the radial head and coronoid. Approximately 6.4% of injuries are open fractures[4].
Where is the olecranon fossa?
The olecranon fossa is located on the posterior surface of the distal humerus, where it receives the proximal ulna during full extension of the arm.
What is the funny bone called?
Funny you should ask. It turns out that your funny bone isn’t a bone. It’s actually a nerve — one that starts in your spine and travels from your neck, through your elbow and to your fingers (your pinky and ring fingers, to be exact). It’s called the ulnar nerve.
