Which of the Following Muscle Groups Contracts to Protrude the Temporomandibular

question 7

Multiple Choice

Which of the following muscle groups contracts to protrude the temporomandibular joint?

• A)Concentric contraction of bilateral digastric and inferior lateral pterygoid muscles
• B)Bilateral contraction of masseter and medial and lateral pterygoid muscles
• C)Concentric contraction of bilateral masseter, temporalis, and medial pterygoid muscles
• D)Bilateral contraction of posterior fibers of the temporalis muscle and anterior portion of digastric muscle

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