T.M.J. (Temporomendibular joint) Type: condylar type of synovial joint. Bones: Temporal and mandible. Ligaments: Capsular ligament and temporomendibular ligament. Articular surface of the left temporomendibular joint Movements: Protraction - pterigoid muscle Retraction - Digastric muscle, Massater muscle. Dipration (Opening of mouth) - Lateral pterigoid muscle, infra hyoid muscle, digastric muscle. Elevation of mandible - All muscles of the mastication. Side to side movement of mandible - ipsilateral pterigoid acting alternately. Fibrous capsule and lateral ligament of the temporomandibular joint Nerve supply: auriculo temporal nerve, Massetric nerve. Applied: 1. Dislocation. 2. Fracture. 3. Damage to auriculotemporal nerve.