HUBS1105 Lecture Notes - Lecture 10: Proximal Radioulnar Articulation, Ulnar Collateral Ligament Of Elbow Joint, Annular Ligament Of Radius
24 Jan 2019
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Document Summary
The elbow region is a synovial hinge joint (uniaxial). The radius sits laterally and the ulna is medial (goes to thumb) The elbow joint is most stable at full extension. The elbow consists of three articulations between the humerous radius and ulna they are humeroulna, humeroradial and proximal radioulnar joint. The humeroulna joint from trochlea to ulna (trochlear notch) is the ulnar collateral ligament. The humeroradial joint from the capitulum to radius (articular fovea) is the radial collateral ligament. Proximal radioulnar joint from the radius (articular circumference) to ulna (radial notch) is the annular ligament. Capitulum a circular/ball shaped of the humerous end where it sits on the circular radius head. There is two epicondyles both medial and lateral that poke out on each side of elbow when in anatomical position. There are two supracondylar ridges that are above these. Above where the ulna attaches there is the coronoid fossa.
