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30 Οκτ 2023 · The radial notch articulates with the circumference of the radial head and forms the proximal radioulnar joint. To learn more about the anatomy of radius and ulna explore our articles, quizzes, video tutorials and labeled diagrams.
- Distal Radioulnar Joint
The distal radioulnar joint is the articulation between the...
- Distal Radioulnar Joint
Radial Notch – The radial notch is a depression on the ulna that accommodates the medial head of the radius and forms the proximal radioulnar joint. This is the big thing you’ve got to remember about the ulnar notch and the radial notch: They’re names are backwards.
7 Νοε 2020 · The radioulnar joints are two locations in which the radius and ulna articulate in the forearm. The proximal radioulnar joint is located near the elbow, and is an articulation between the head of the radius,and the radial notch of the ulna.
The radial notch of the ulna (lesser sigmoid cavity) is a narrow, oblong, articular depression on the lateral side of the coronoid process; it receives the circumferential articular surface of the head of the radius.
The radial notch is the smooth, oval, articular indentation found along the lateral aspect of the coronoid process of ulna. Its anterior and posterior margins provide attachment sites for the annular ligament of the radius.
Laterally to the trochlear notch lies the radial notch, which articulates with the head of the radius to form the proximal radioulnar joint. Immediately distal to the coronoid process is the tuberosity of ulna, to which the brachialis muscle attaches.
3 Νοε 2023 · The distal radioulnar joint is the articulation between the crescent-shaped convex distal head of ulna and the concave ulnar notch of radius. Both surfaces are lined by the hyaline cartilage. The joint contains a triangular fibrocartilaginous articular disc.
