Temporomandibular joint: capsule (English)

Magnification of the TMJ with the capsule opened. In this sagittal view, details of the anatomy of the joint are illustrated. The joint cavity is divided into two cavities (superior and inferior) by an articular disc. In the sagittal section, the disc has a thin intermediate zone which is bounded by thickened anterior and posterior bands. The disc stabilizes the condyle of the mandible within the joint, reduces frictional forces between the articular surfaces and may aid lubrication of the joint.