Depression and Protrusion of the mandible_______________?

Correct answer: B. Lateral (EXTERNAL) Pterygoid muscle

A. Medial ( INTERNAL) pterygoid muscle
B. Lateral (EXTERNAL) Pterygoid muscle
C. Masseter muscle
D. Temporalis muscle

Explanation

The lateral pterygoid pulls the mandibular condyle and articular disc forward, producing protrusion and assisting depression of the mandible. Medial pterygoid mainly elevates and assists protrusion, whereas temporalis mainly elevates and retracts.

Submitted by a TestUstad contributor and published by the TestUstad editorial teamLast updated 21 September 2026

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Depression and Protrusion of the mandible_______________?

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