Forward moment of mandible is done by_________?
Correct answer: A. Lateral pterygoid
- A. Lateral pterygoid
- B. Medial pterygoid
- C. Temporalis - anterior fibers
- D. Temporalis- posterior fibers
Explanation
Forward movement, or protrusion, is chiefly performed by bilateral contraction of the lateral pterygoid muscles. The medial pterygoids can assist, but the posterior fibres of temporalis retract the mandible.
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