National Dental Examining Board of Canada (NDEB) Practice Exam 2025 – The Comprehensive All-in-One Guide to Exam Success!

Question: 1 / 400

Lateral pterygoid muscle pulls the disc of TMJ in which direction?

Forward & medially

The lateral pterygoid muscle is responsible for pulling the disc of the temporomandibular joint (TMJ) forward and medially. This muscle works in conjunction with the medial pterygoid and masseter muscles to open the jaw and help with lateral movement. Option B is incorrect because the lateral pterygoid muscle does not pull the disc backward. Option C is incorrect because the lateral pterygoid muscle does not pull the disc laterally. Option D is incorrect because the lateral pterygoid muscle does not pull the disc backward and laterally.

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Backward & medially

Forward & laterally

Backward & laterally

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