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30 Οκτ 2023 · On the lateral aspect of the proximal ulna and just distal to the trochlear notch lies the shallow, rounded depression called the radial notch. The radial notch articulates with the circumference of the radial head and forms the proximal radioulnar joint.
23618. Anatomical terms of bone. [edit on Wikidata] 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. It is concave from before backward, and its prominent extremities serve for ...
1 Οκτ 2024 · In the distal region, the radial shaft expands to form a rectangular end. The lateral side projects distally as the styloid process. In the medial surface, there is a concavity, called the ulnar notch, which articulates with the head of ulna, forming the distal radioulnar joint.
1 Οκτ 2024 · Important landmarks of the proximal ulna are the olecranon, coronoid process, trochlear notch, radial notch and the tuberosity of ulna: Olecranon – a large projection of bone that extends proximally, forming part of trochlear notch. It can be palpated as the ‘tip’ of the elbow.
22 Ιουλ 2023 · Adjacent to the coronoid process, a shallow notch called the radial notch accommodates the joint with the head of the radius. This joint enables the radial head to rotate against the ulna’s proximal end during pronation and supination.
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.
17 Δεκ 2020 · At this proximal radioulnar joint, the radial head articulates with the ulnar at a little notch in the unlar called the radial notch. And here, the radius spins around so you get pronation and supination.
