The proximal radioulnar articulation, also known as the proximal radioulnar joint (PRUJ), is a
synovial pivot joint
In animal anatomy, a pivot joint (trochoid joint, rotary joint or lateral ginglymus) is a type of synovial joint whose movement axis is parallel to the long axis of the proximal bone, which typically has a convex articular surface.
According ...
between the circumference of the
head of the radius and the ring formed by the
radial notch of the
ulna and the
annular ligament.
Structure
The proximal radioulnar joint is a
synovial pivot joint
In animal anatomy, a pivot joint (trochoid joint, rotary joint or lateral ginglymus) is a type of synovial joint whose movement axis is parallel to the long axis of the proximal bone, which typically has a convex articular surface.
According ...
.
It occurs between the circumference of the
head of the radius and the ring formed by the
radial notch of the
ulna and the
annular ligament.
The
interosseous membrane of the forearm and the annular ligament stabilise the joint.
A number of nerves run close to the proximal radioulnar joint, including:
*
median nerve
The median nerve is a nerve in humans and other animals in the upper limb. It is one of the five main nerves originating from the brachial plexus.
The median nerve originates from the lateral and medial cords of the brachial plexus, and has cont ...
*
musculocutaneous nerve
*
radial nerve
See also
*
Distal radioulnar articulation
*
Supination
References
Joints
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