INBDE (Integrated National Board Dental Examination) Practice Exam

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What muscle draws the eyebrows together?

  1. Frontalis

  2. Orbicularis oculi

  3. Corrugator supercilii

  4. Temporalis

The correct answer is: Corrugator supercilii

The muscle that draws the eyebrows together is the Corrugator supercilii. This muscle is located around the eyebrows and is responsible for the downward and inward movement of the eyebrows. Option A, Frontalis, is responsible for raising the eyebrows and creating wrinkles on the forehead. Option B, Orbicularis oculi, is responsible for closing the eyelids. Option D, Temporalis, is a muscle of mastication responsible for closing the jaw.

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