TOPIC 5A MANDIBLE

Question 1

What are the 5 muscles of mastication

Answer 1

m. masseter, mylohyoideus, pterygoideus med et lat, temporalis and digatricus

Question 2

what muscle opens the jaw

Answer 2

m digastricus

Question 3

what muscle lifts the tongue

Answer 3

m mylohyoideus

Question 4

is fossa pterygoidea med or lateral on the os mandiblula?

Answer 4

medial

Question 5

which species has proc angularis

Answer 5

canine

Question 6

which species has tuberositas sternomandibularis

Answer 6

equine

Question 7

what duct curves around incisura vasorum facialum

Answer 7

parotid duct

Question 8

what kind of art. is caput mandibulae of proc condylaris?

Answer 8

art convex

Question 9

what kind of joint is the temporomandibular joint?

Answer 9

incongruent, synovial, has a discus

Question 10

what kind of movement is the temporomandibular joint capable of?

Answer 10

hinge (opening and closing the mouth) and lateral (grinding)

Question 11

what ligaments are at the temporomandibular joint?

Answer 11

lig laterale and lig caudale (eq, ru)

Question 12

proc lingualis is off what bone & in what species

Answer 12

os basihyoid in ru and eq

Question 13

what does the hyoid bone connect with caudally

Answer 13

the pharynx

Question 14

what does the stylohyoid bone have in ru and eq?

Answer 14

angulus stylohyoideus

Question 15

Where does m mylohyoideus originate

Answer 15

linea mylohyoidea

Question 16

name the parts of the hyoid skeleton

Answer 16

basihyoid, epihyoid, stylohyoid, thyrohyoid, ceratohyoid, tympanihyoid (BEST CT)

Question 17

what does the tympanohyoid part articulate with in eq and ru

Answer 17

os temporale - proc styloideum of tympanicum

Question 18

what does the tympanohyoid part articulate with in ca

Answer 18

proc mastoideus of petrosal part of os temporale

Question 19

insertion of m mylohyoideus

Answer 19

median raphe beneath tongue and basihyoid

Question 20

origin of m temporalis

Answer 20

fossa temporalis and its borders: linea temporalis, ext sag crest, nichal crest and doral edge of zygo arch

Question 21

insertion of m temporalis

Answer 21

coronoid proc of mandible

Question 22

origin of m masseter

Answer 22

ventral border of zygo arch

Question 23

insertion point of m masseter

Answer 23

fossa massaterica of mandible

Question 24

origin of m digastricus

Answer 24

proccesus paracondylaris of occipital bone

Question 25

insertion of m digastricus

Answer 25

ventral border of mandible

Question 26

origin of m pterygoideus medial

Answer 26

fossa pterygopalatina

Question 27

insertion of m pterygoideus medial

Answer 27

fossa pterygoidea

Question 28

origin of m pterygoideus lateralis

Answer 28

ventral to canalis alaris

Question 29

insertion of m pterygoideus lateralis

Answer 29

fovea pterygoidea