Lateral Pterygoid – Superior Head

Hand MonitoringHand StabilizingMonitoring DirectionNote To monitor this Muscle:  TL superiority to the Anterior aspect of the mandible condyle with mouth open by one thumb and jaw protruded.

Lateral Pterygoid – Inferior Head

Hand MonitoringHand StabilizingMonitoring DirectionNote To monitor this Muscle:  TL inferiority to the mandible condyle with mouth 1/2 open and jaw protruded and lateralized toward the opposite side.

Geniohyoid

Hand MonitoringHand StabilizingMonitoring DirectionNote To monitor this Muscle:  TL posterior to the mandibular symphysis with the jaw open and retracted. 

Dygastric Posterior Belly

Hand MonitoringHand StabilizingMonitoring DirectionNote To monitor this Muscle:  TL Challenge. Touch belly of posterior division located superior to hyoid, inferior to mandible, anterior to Sternocleidomastoid and just anterior and inferior to Atlas. 

Dygastric Anterior Belly

Hand MonitoringHand StabilizingMonitoring DirectionNoteThis is a TL test. TL one thumb laterally to the jaw symphysis on the inferior border of the jaw, with the jaw open one thumb.