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             Articular eminence (most convex part of fossa: "high position") and Articular fossa are the two articulating areas. They are located on the inferior aspect of the bone. .
             b. Post-gleniod process: bone on the distal area of the zygomatic arch.
             Front of rounded depression: Articular eminence.
             Depression: Articular Fossa.
             Back of rounded depression: Post-glenoid process.
             2. MANDIBLE .
             a. Articulating surface of condyle is coronal part .
             b. Anterior to the condyle is the coronoid process. .
             c. The Mandibular notch is the area in between the coronoid process and the condyle.
             THE JOINT CAPSULE:.
             a. Completely encloses the TMJ; wraps around the articular eminence and articular fossa superiorly, and wraps around the mandibular condyle (including the neck) inferiorly.
             b. Tough, fibrous CT.
             c. Nerve supply and rich blood supply: a lot of pain possible.
             THE DISC .
             a. Fibrous, located between the temporal bone and condyle of the mandible on each side.
             b. Divides the TMJ into two spaces- synovial cavities.
             1. Upper synovial cavity.
             2. Lower synovial cavity.
             c. Membranes line the inside of capsule and secrete synovial fluid for lubrication.
             JAW MOVEMENTS:.
             TMJ is classed ginglymoarthrodial joint because it moves as a hinge while its rotating. GLIDES and ROTATES.
             Sliding of Jaw: correct name is translation.
             Protrusion: bringing lower jaw forwards.
             Retraction: bringing lower jaw backwards.
             Depression: lowering of lower jaw.
             Elevation: raising of lower jaw.
             Contracting Muscle Action.
             Lateral pterygoid ►UNILATERAL contraction: lateral excursion; as one side contracts, the other side flops out.
             ►BILATERAL contraction: pulls mandible forward (protrusion) also, sliding or translation.
             Temporalis muscles (posterior portion) .
             Retraction of mandible.
             Anterior suprahyoid .
             Lateral pterygoid muscle (infer. heads).
             Also involved .
             BILATERAL contraction: depression of mandible (opening jaw).

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