5 Written questions
5 Matching questions
- muscles of mastication
- tic delereux
- posterior belly of digastric
- medial ptergoid muscle
- protrudes or moves forward
- a origainates- temporal bone, specifically the mastoid process, inserts- on hyoid bone, action- elevates hyoid and moves slightly posterior, innervation- CN # 7
- b origin- lateral ptergoid process, inserts, angle of mandible, action- mimics masseter on medial side, elevates mandible, innervated- CN # 5
- c 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
- d there are 4, all 4 move mandible , all are innervated by CN # 5, specifically the mandibular branch of trigeminal nerve
- e when both ptergoid muscles contracts the mandible does what?
5 Multiple choice questions
- origin- at sternum, inserts on thyroid cartilage, depresses hyoid, and aids in swallowing, innervated by cervical nerves, short and thick
- these muscles are responsible for shaping the tounge during speech, chewing and swallowing
- how many groups of muscles does the tongue have?
- originates- genial tubricles, inserts- hyoid bone, innervation- CN # 1, action- elevates and moves hyoid slightly anterior
- when right lateral ptergoid muscles contracts the mandible does this, and vice versa if the left one were to contract.
5 True/False questions
masseter → on moveable bone, bone will move as a result of muscle action- what results from contraction
levator labii superioris → origin- maxilla, inserts- maxillary lip, action- pulls lip up for smile, innervation- CN #7
epicranial muscle → along forehead above orbit, raised eyebrows or scrunched forehead.
omohyoid → positioned under geniohyoid, originates- mylohyoid line on mandible, inserts- in hyoid bone, action- elevates and moves slightly anterior the hyoid bone, innevated- mylohyoid nerve
origin → where muscle originates, and attaches to immoveable bone or surfaces