Revision 18 for 'Muscles of mastication'

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Muscles of mastication

The muscles of mastication can be divided into primary and secondary groups according to whether they connect the mandible directly to the skull or if they attach to other structures in the neck, e.g. hyoid, thyroid cartilage.

Primary

Secondary

Actions

  • close
    • temporalis muscle
    • masseter muscle
    • medial pterygoid muscle
  • open
    • lateral pterygoid muscle
  • anterior translation
    • masseter muscle (posterior fibers)
    • medial pterygoid muscle
    • lateral pterygoid muscle
  • posterior translation
    • temporalis muscle (posterior fibers)

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