Tags: Anatomical Structure.
The articular disk is a thin oval plate placed between the condyle of the mandible and the mandibular fossa.Its upper surface is concavo-convex from before backward to accommodate itself to the form of the mandibular fossa and the articular tubercle.Its under surface in contact with the condyle is concave.Its circumference is connected to the articular capsule; and in front to the tendon of the Pterygoideus externus.It is thicker at its periphery especially behind than at its center.The fibers of which it is composed have a concentric arrangement more apparent at the circumference than at the center.It divides the joint into two cavities each of which is furnished with a synovial membrane.
