Gross Anatomy Lecture 27

Front 1

what part of mandible supports the lower toothrow?

Back 1

aveolar part

Front 2

coronoid process - location?

Back 2

mandible

Front 3

mental protuberance - location?

Back 3

mandible

Front 4

lingula - location?

Back 4

mandible

Front 5

mental spines - location?

Back 5

mandible

Front 6

mandibular foramen - what passes thru?

Back 6

inferior aveolar n and a

Front 7

mental foramen - what passes through?

Back 7

mental n

Front 8

temporal fascia - attachment?

Back 8

superior temporal line

Front 9

mandibular notch - what passes thu?

Back 9

masseteric n and a

Front 10

temporalis - function?

Back 10

elevates jaw
retracts jaw (posterior fibers)
mastication

Front 11

masseter - function?

Back 11

elevates jaw
protracts jaw
mastication

Front 12

temporalis - innervation?

Back 12

CN5III

Front 13

masseter - innervation

Back 13

CN5III

Front 14

the "ear" is also called:

Back 14

pinna

Front 15

what fibers are active during chewing (but not biting) and where can they be palpated?

Back 15

posterior fibers of temporalis
-just above ear

Front 16

boundaries of infratemporal region

Back 16

-inferior to zygomatic arch
-medial to ramus of mandible
-lateral to pterygoid plate
-anterior to the condylar process of mandible
-posterior to infratemporal surface of maxilla

Front 17

temporalis - insertion?

Back 17

infratemporal region

Front 18

infratemporal region - contents

Back 18

-insertion for temporalis
-medial and lateral pterygoid mm
-maxillary a
-pterygoid plexus

Front 19

medial pterygoid m - origin

Back 19

medial surface of ramus of mandible

Front 20

medial pterygoid m - function

Back 20

-elevates mandible
-protracts mandible

Front 21

lateral pterygoid m - origin

Back 21

-lateral pterygoid plate
-greater wing of sphenoid

Front 22

lateral pterygoid m - insertion

Back 22

-neck of mandible
-articular disc of TMJ

Front 23

lateral pterygoid m - function

Back 23

-draw mandible and disc foward when mouth is opened
(protraction)

Front 24

maxillary a is a terminal branch of what artery?

Back 24

external carotid a

Front 25

superficial temporal a is a terminal branch for what artery?

Back 25

external carotid a

Front 26

pterygoid plexus - a large network of _____ between _____ and _____.

Back 26

veins
-temporalis
-lateral pterygoid

Front 27

pterygoid plexus - location?

Back 27

between cavernous sinus and facial v

Front 28

maxillary has how many parts? they are named according to what muscle?

Back 28

3 parts
-lateral pterygoid m

Front 29

maxillary a - 1st part - starts where?

Back 29

lateral and inferior to lateral pterygoid

Front 30

maxillary a - 1st part - branches?

Back 30

1)deep auricular a
2)anterior tympanic a
3)inferior aveolar a
4)middle meningeal a

Front 31

inferior aveolar a - has a large branch that enters where?

Back 31

mandible via manibular foramen

Front 32

middle meningeal a - called what?

Back 32

principal a of the calvarium

Front 33

middle meningeal a - damage causes?

Back 33

epidural hemmorage

Front 34

maxillary a - 2nd part - branches / examples?

Back 34

muscular branches (temporal aa)

Front 35

maxillary a - supplies?

Back 35

muscles of mastication

Front 36

maxillary a - 3rd part - starts where?

Back 36

right before the maxillary a enters the pterygopalatine fossa, passing through pterygomaxillary fissue

Front 37

maxillary a - 3rd part - supplies what areas?

Back 37

-superior aveolar area
-palatine
-infraorbital area
-pharyngeal areas

Front 38

TMJ - what kind of joint?

Back 38

synovial

Front 39

TMJ - what separates the superior and inferior compartments?

Back 39

fibrocartilaginous articular disc

Front 40

lateral pterygoid - attachment?

Back 40

articular disc
neck of mandible

Front 41

TMJ - bony landmarks?

Back 41

-head of mandible
-mandibular fossa
-articular tubercle
-postglenoid tubercle

Front 42

TMJ - postglenoid tubercle function?

Back 42

prevents backward movement of head of mandible

Front 43

superior compartment of TMJ - function?

Back 43

-allows wide gape
-gliding of articular tubercle when mouth opens

Front 44

inferior compartment of TMH - function

Back 44

-hinge

Front 45

lateral TM ligament - function?

Back 45

restriction of lateral movement of TMJ

Front 46

TMJ - accessory ligaments?

Back 46

-sphenomandibular ligament
-stylomandibular ligament

Front 47

protraction of right side of jaw will swin chin to _____, and is accomplished by "forced couple" - which muscles?

Back 47

left
-right later pterygoid
-right posterior temporalis

Front 48

muscles of mastication - elevation?

Back 48

-temporalis
-masseer
-medial pterygoid

Front 49

muscles of mastication - depression

Back 49

-digastric
-lateral pterygoid
-suprahyoids
-infrahyoids

Front 50

muscles of mastication - protraction

Back 50

-medial and lateral pterygoids
-deep part of masseter

Front 51

muscles of mastication - retraction

Back 51

-posterior temporalis
-digastric