Olecranon Anatomy
The olecranon is a large bony prominence at the proximal end of the ulna. The olecranon oʊ ˈ l ɛ k r ə n ɒ n from the greek olene meaning elbow and kranon meaning head is the large thick curved bony eminence of the ulna a long bone in the forearm that projects behind the elbow.
Its base is contracted where it joins the body and the narrowest part of the upper end of the ulna.
Olecranon anatomy. Olecranon fractures are a diverse group of injuries ranging from simple nondisplaced fractures to complex fracture dislocations of the elbow jointthe humans unique prehensile skill largely depends on the integrity of the bones ligaments and muscles around the elbow joint. It forms the most pointed portion of the elbow and is opposite to the cubital fossa or elbow pit. The projection that forms the lower border of the trochlear notch the coronoid process enters the coronoid fossa of the humerus when the elbow.
The olecranon is the part of the ulna that cups the lower end of the humerus creating a hinge for elbow movement. The olecranon is a large thick curved eminence situated at the upper and back part of the ulna. It articulates behind the humerus in the olecranon fossa and may be felt as the point of the elbow.
It is palpable at the posterior aspect of the elbow. Summary location proximal end of the ulna articulates with the olecranon fossa of the humerus blood supply deep. The olecranon oh leh cruh nahn is the pointy bone at the tip of the elbow.
It is bent forward at the summit so as to present a prominent lip which is received into the olecranon fossa of the humerus in extension of the forearm. It helps the skin slide over the bone smoothly. The bony point of the olecranon can be easily felt beneath the skin because it is covered by just a thin layer of tissue.
The elbow is held together by its bony architecture as well as ligaments tendons and muscles. The bursa is the thin sac of fluid that lies between this boney tip and the skin. Normally this sac has only a tiny bit of fluid inside of it and lays flat.
In ulna this notch is called the olecranon process.
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