Musculoskeletal System in Dentistry · CDA

Which muscle tenses the skin of the neck and can be visible when clenching the jaw?

  1. Platysma
  2. Trapezius
  3. Sternocleidomastoid
  4. Masseter
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Correct answer: Platysma

The platysma is a thin muscle that tenses neck skin and assists in depressing the mandible. It becomes pronounced during jaw clenching.

Difficulty: Medium Question 15 of 20

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