Annular ligament encircles radial head and is attached to edges of radial notch of ulna. Is lined with articular cartilage to allow sliding of radial head. From neck of radius to inferior edge of radial notch of ulna. Reinforces the inferior aspect of the joint and helps keep radial head in close apposition to ulna. It is a condyloid type of synovial joint.
Primary function is to position hand.
Draw a cross section through the mid-level of the arm. Return to homepage PT Dept.