National Dental Examining Board of Canada (NDEB) Practice Exam

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Master your National Dental Examining Board of Canada (NDEB) exams with our comprehensive practice guide. Achieve excellence in your dental certification with expertly crafted questions and detailed explanations.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

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

Forward & medially
Backward & medially
Forward & laterally
Backward & laterally

The correct answer is: 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.