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18 Απρ 2022 · The olecranon articulates with the humerus via the olecranon fossa on the humerus, which is situated over the posterior surface of the humerus. It is continuous with the coronoid process of the ulna via the trochlear or semilunar notch anteriorly.
The olecranon (olecranon process) is the large, superior projection on the proximal part of ulna. It curves anteriorly at its top, forming a prominent tip which is accommodated by the olecranon fossa of humerus during forearm extension.
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).
30 Οκτ 2023 · 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 coronoid fossa is a smaller hollow that is also located superior to the trochlea, but on the anterior surface.
30 Οκτ 2023 · The olecranon is a prominent, proximal projection from the posterior aspect of the proximal ulna and serves as the point of insertion for the triceps brachii muscle. Its topmost portion bends anteriorly like a beak, which fits into the olecranon fossa of the distal humerus during extension, preventing hyperextension of the elbow joint.
3 Απρ 2024 · the condyle of the humerus: trochlea: articulates with the trochlear notch of the ulna. radial fossa: receives the anterior border of the radial head in forearm flexion. capitellum: articulates with the head of the radius. olecranon fossa: receives the olecranon process of the ulna with forearm extension
30 Οκτ 2023 · More specifically, its attachment extends over an elongated triangular area on the humerus. The apex of the triangle is located on the medial border of the humerus above the insertion of teres major, while the base is the line that connects the medial and lateral epicondyles of the humerus.
