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The olecranon fossa is a deep triangular depression on the posterior side of the humerus, superior to the trochlea. It provides space for the olecranon of the ulna during extension of the forearm.
The olecranon fossa is a deep hollowed area on the posterior surface, superior to the trochlea. In elbow extension, the tip of the ulnar olecranon process lodges into this fossa. Coronoid fossa
The olecranon fossa is the large, deep depression found along the posterior aspect of the condyle of humerus. It is formed by the concave posteromedial surface of the greater trochanter. It accommodates the olecranon of ulna during elbow extension.
It is typically a transverse fracture, spanning between the two epicondyles in the relatively weak epicondylar region formed by the olecranon fossa and coronoid fossa which lie opposite each other in the distal humerus.
The olecranon fossa is a deep, triangular depression located on the posterior aspect of the humerus, just above the trochlea. It accommodates the olecranon process of the ulna when the arm is fully extended.
In these, the olecranon of the ulna is driven upward, resulting in a fracture across the distal humerus, above both epicondyles (supracondylar fracture), or a fracture between the epicondyles, thus separating one or both of the epicondyles from the body of the humerus (intercondylar fracture).
The olecranon (/ oʊˈlɛkrənɒn /, from Greek olene 'elbow' and kranon 'head'), is a large, thick, curved bony process on the proximal, posterior end of the ulna. It forms the protruding part of the elbow and is opposite to the cubital fossa or elbow pit (trochlear notch).