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5 Written questions

5 Matching questions

  1. masseter
  2. medial ptergoid muscle
  3. obicularis oculi
  4. multiple directions
  5. depressor anguli oris
  1. a the tounge in cross section has this____ ______?
  2. b circles eye, originates- orbital rim, inserts- soft tissue that surrounds orbit, action- closes eye or scrunches eye lightly or with tightness, innervation- CN #7
  3. c origin- lateral ptergoid process, inserts, angle of mandible, action- mimics masseter on medial side, elevates mandible, innervated- CN # 5
  4. d largest muscle of mastication as well as the powerhouse
  5. e origin- mandible, inserts- angle of mouth, action- depresses corner of mouth for frown, innervation- CN # 7

5 Multiple choice questions

  1. facial nerve
  2. aka as trigeminal neuralgia, CN # 5 can be hypersensitive, or muscle goes into tonic contraction and stays, can be very painful, typically only experienced on the right or left, painful to chew, idiopathic- questionable cause, typically pain comes and goes
  3. depress hyoid bone, all are innervated by cervical nerves, and all aid in swallowing
  4. origin- alveolar process of maxilla and pterygoid mandibular raphae, insertion- angle of mouth, action- it pushes the food bolus over the occlusal surface of posterior teeth, innervation- CN #7, * Only muscle of facial expression that does not give a facial expression, really aids in chewing *
  5. originates- clavicle, insertion- mastoid process of temporal bone, action- turns head from left to right, innervation- CN # 11

5 True/False questions

  1. digastricwhich muscle has two bellys, posterior and anterior?


  2. suprahyoid musclesraise hyoid bone, and does not articulate with any other bone


  3. zygomaticusorigin- zygomatic bone, inserts- at corner of lip, action- elevates commisures of lips for smiling, innervation- CN #7


  4. insertson moveable bone, bone will move as a result of muscle action- what results from contraction


  5. muscles of masticationthere are 4, all 4 move mandible , all are innervated by CN # 5, specifically the mandibular branch of trigeminal nerve