The radioulnar joint is located in the forearm, specifically between the radius and ulna bones. There are actually two radioulnar joints: the proximal radioulnar joint near the elbow and the distal radioulnar joint near the wrist.
Proximal Radioulnar Joint
The proximal radioulnar joint sits near the elbow. It is the articulation between the head of the radius and the radial notch of the ulna. This joint allows for pronation and supination of the forearm, which are movements that allow you to rotate your palm downwards and upwards, respectively.
Distal Radioulnar Joint
The distal radioulnar joint is situated near the wrist. It's the articulation between the head of the ulna and the ulnar notch of the radius. This joint also contributes to pronation and supination movements of the forearm.
In summary, the radioulnar joint refers to a system of two joints located in the forearm: one near the elbow (proximal) and one near the wrist (distal), both crucial for forearm rotation.
