The action of digastric muscle is__________________?

Correct answer: A. Depression of mandible

  • A. Depression of mandible
  • B. Protrusion of mandible
  • C. Side- to- side movement of mandible
  • D. Depressing the floor of the mouth

Explanation

When the hyoid is fixed, the digastric muscle depresses the mandible and helps open the mouth. It elevates the hyoid and floor of the mouth when the mandible is fixed, rather than depressing the floor.

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