National Dental Examining Board of Canada (NDEB) Practice Exam

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Prepare for the National Dental Examining Board of Canada (NDEB) Test. Study with flashcards and multiple choice questions, each question offers hints and detailed explanations. Achieve success in your exam!

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.