Anatomy & Histology · single question
All of the following are mandibular elevator ('closing') muscles EXCEPT:
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Correct answer: C. Lateral pterygoid (primarily involved in protrusion, depression assistance, and lateral excursion — not elevation/closing)
The masseter, medial pterygoid, and temporalis are the three classic muscles of mastication that elevate (close) the mandible. The lateral pterygoid is functionally different — it assists in protrusion, helps depress/open the jaw, and contributes to lateral excursive movements, making it the exception among these four muscles.
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