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Annular Ligament
From WikiSM
Contents
Description
- Other names
- Annular ligament of radius
- Orbicular ligament
- Anatomy
- Attached by both its ends to the anterior and posterior margins of the radial notch of the ulna
- Supported by attachments to the radial collateral ligament, elbow joint capsule
Actions
- Forms the articular surface of the head and neck of the radius
- Flexibility allows the oval head of the radius to rotate freely during pronation and supination
- Prevents distal displacement of the radius
- Stabilizes the proximal radial head, radioulnar joint
Vascular Supply
- Needs to be updated
Innervation
- Needs to be updated