GENERAL HISTOLOGY

Detailed explanation-1: -A herniated disc (also called bulged, slipped or ruptured) is a fragment of the disc nucleus that is pushed out of the annulus, into the spinal canal through a tear or rupture in the annulus.

Detailed explanation-2: -Disk herniation occurs when the fibrocartilage surrounding the intervertebral disk ruptures, releasing the nucleus pulposus (Figure 17-16). The resultant pressure on spinal nerve roots may cause pain and damage the surrounding nerves.

Detailed explanation-3: -A fibrocartilaginous articular disk separates the fossa and articular surface of the head of the mandible into two noncommunicating compartments. The disk attaches laterally to the head and medially to the temporal bone by ligamentous extensions. Capsular attachments to the disk are found circumferentially.