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11 Σεπ 2023 · There are three bones that comprise the elbow joint: the humerus; the radius; the ulna. These bones give rise to two joints: Humeroulnar joint is the joint between the trochlea on the medial aspect of the distal end of the humerus and the trochlear notch on the proximal ulna.
- Radius
Just distal to the coronoid process, the proximal ulna bears...
- Radius
30 Οκτ 2023 · Just distal to the coronoid process, the proximal ulna bears the ulnar tuberosity onto which the brachialis muscle inserts. On the lateral aspect of the proximal ulna and just distal to the trochlear notch lies the shallow, rounded depression called the radial notch.
21 Ιουν 2024 · Articulations. The elbow joint is made up of three articulations 2,3: radiohumeral: capitellum of the humerus with the radial head. ulnohumeral: trochlea of the humerus with the trochlear notch (with separate olecranon and coronoid process articular facets) of the ulna.
2 Νοε 2023 · The elbow joint consists of two separate articulations: Trochlear notch of the ulna and the trochlea of the humerus; Head of the radius and the capitulum of the humerus; Note: The proximal radioulnar joint is found within same joint capsule of the elbow, but most resources consider it as a separate articulation.
7 Νοε 2020 · Written by Oliver Jones. Last updated November 7, 2020 • 22 Revisions •. The radioulnar joints are two locations in which the radius and ulna articulate in the forearm: Proximal radioulnar joint – located near the elbow. It is articulation between the head of the radius and the radial notch of the ulna.
The radial head has complex anatomy, and it has been described as circular or ellipsoidal with a 1–2 mm depression in the mid portion defined as the dish or the fovea radialis. 40, 41 The radial head articulates with the capitellum proximally and the lesser sigmoid notch of the ulna medially.
The radial notch of ulna articulates with the medial portion of the articular circumference of the head of the radius, forming the proximal radioulnar joint, which itself contributes to the formation of the elbow joint.