A 40-year-old patient complains of pain in the tragus area, clicking sound during mouth opening, stuffed ears. Objectively: the face is symmetrical, mouth opening path is straight.Dentition defect can be estimated as Kennedy I class; the 18, 17, 16, 26, 27, and 28 teeth are missing. In this case the load would be the most traumatizing for the following anatomical structure: