TMJ Function: What are the two independent functions created by the disc in the TMJ? What occurs in the inferior joint space? What occurs in the superior joint space? Which portion gets affected when you have TMD of derangement? What happens to the meniscus when you open your jaw? What ligament helps slide the condyle anteriorly after 25 mm of opening? What do we call the movement that occurs after 25 mm of opening? What happens during right laterotrusion? What happens to the left and right TMJ during left laterotrusion? What happens if the superior portion on the right slide is blocked?