oart 2

Question 1

masseter

origin

insertion

blood supply

nerve

Answer 1

o= sygomatic arch
in=lateral surface of ramus and angle of mandible

muscular branch of max artery

masseter nerve of mand division of trigeminal nerve

Question 2

temporalis

origin

insertion

blood

nerve

Answer 2

temporal fossa and lateral surface of skull

insertion= coronoid process and anterior border of ascending ramus

blood= muscbranch of max artery

nerve= deep temp nerve of mand trigeminal

Question 3

inferior lateral pterygoid

origin

insertion

Answer 3

origin= outer surface of lateral pterygoid plate

insertion= neck of condyle

Question 4

superior lateral pterygoid

origin

insertion

Answer 4

infratemporal surface of greater sphnoid wing

insertion= disk, capsule, neck of condyle

Question 5

lateral pterygoid blood and nerve

Answer 5

blood= muscular branch of max artery

nerve= branch of masseteric or buccal nerve on trigemina

Question 6

medial internal pterygoid

o

i

Answer 6

origin= pterygoid fossa

insertion= medial surface of mand angle

Question 7

geniohyoid

Answer 7

o= inferior genial tubercle on inner surface of mand symphysis

i= anterior surface of body of hyoid bone

Question 8

mylohyoid

Answer 8

o= line fro mlast molar root to mandibular symphysis

i= median raphe from chin to hyoid bone

Question 9

digastric 2 bellies

Answer 9

o= post belly longer than anter, arises from mastoid process

i= hyoid bone