Figure 7. Schematic of the TMJ in an open mouth position and sagittal projection. 1, Mandibular head; 2, articular eminence; 3, superior joint space; 4, inferior joint space; 5, disk (5a, anterior band; 5b, intermediate zone; 5c, posterior band); 6, bilaminar zone; 7, lateral pterygoid muscle with interposed fat tissue (yellow).