Temporal & TMJ Flashcards Preview

SP16 Anatomy Exam 2 > Temporal & TMJ > Flashcards

Flashcards in Temporal & TMJ Deck (53):
1

What are the components of the parotid gland region? (4)

Parotid Gland
Facial nerve ( 6 branches)
External carotid artery
Retromandibular vein

2

Components of the temporal fossa

Temporal fat pad
Temporal fascia
Temporalis muscle
Middle temporal artery
Superficial temporal artery
Deep temporal arteries

3

RElationship of Parotid to Ear

Just inferior/anterior to external acoustic meatus
Swelling of gland will push ear superolateral (causes Mumps-viral infection)

4

what is the retromandibular vein formed by?

superficial and temporal maxillary vein

5

Where does the two divisions of retromandibular vein drain into?

IJV and EJV

6

The external carotid artery's relationship with retromandibular vein

it is parallel and deep within it

7

what 2 terminal branches does the external carotid artery split into?

superficial temporal artery and maxillary artery

8

what nerve innervates all mm of facial expression?

facial nerve

9

where does the facial nerve exit the cranium?

stylomastoid foramen

10

what does the facial nerve form within the parotid gland?

parotid plexus

11

what are the 6 branches of the facial nerve?

temporal branches
zygomatic branches
buccal
marginal mandibular branch
cervical branch
posterior auricular nerve

12

what bones does the temporal fossa incorporate?

frontal
parietal
temporal
sphenoid
zygomatic

13

The trigeminal nerve V3 division is called what

mandibular

14

what 2 divisions does V3 have

anterior and posterior

15

What is the function of anterior division

small and mainly motor EXCEPT BUCCAL NERVE (SENSORY)

16

What is the function of the posterior branch of V3

larger, sensory EXCEPT MYLOHYOID NERVE (MOTOR)

17

the auriculotemporal nerve travels with what?

superficial temporal a and v

18

what does the auriculotemporal nerve innervate?

sensory to TMJ and lateral scalp

19

what does the auriculotemporal nerve carry?

p-symp fibers from CN IX into parotid gland

20

what are the components of CN v3?

auriculotemporal nerve
anterior and posterior deep temporal nn.
temporal branches of facial nerve

21

what are the muscles of the infratemporal fossa

temporalis, medial and lateral pterygoids mm

22

what are the a and v of infratemporal fossa?

maxillary and brs
pterygoid plexus of veins

23

what are the nerves of the infratemporal fossa?

mandibular division of CN V
Posterior superior alverolar n (V2)
chorda tympani n branch of CN VII
otic ganglion
lesser petrosal n

24

what is the action of the medial pterygoid muscle?

elevates, protrudes, and rotates mandibule

25

what is the action of the lateral pterygoid muscle?

opens, protudes, and rotates mandible

26

What are the V3 branches?

Auriculotemporal
masseteric and deep temporal nn
medial and lateral pterygoid n
buccal n
inferior alveolar and lingual n

27

what are motor components of V3?

Auriculotemporal
masseteric and deep temporal nn
medial and lateral pterygoid n

28

what are the sensory components of V3?

buccal n
inferior alveolar and lingual n

29

What are the nerves of mastication?

masseteric n
deep temporal n
medial and lateral pterygoid n

30

What does the masseteric n supply and run through?

supplies masseter m and goes through mandibular notch

31

what does the deep temporal n supply

temporalis m

32

what does the medal and lateral n supply?

supplies medial and lateral pterygoid muscles

33

what is a special sensory branch of CN VII

chorda tympani n

34

what does chorda tympani n join posteriorly?

lingual n

35

what does the chorda tympani supply?

p-symp innervation to lower 2 salivary glands

36

what does the chorda tympani n carry to the tongue?

taste fibers from anterior 2/3 of tongue

37

what is the TMJ formed by?

portions of temporal bone and mandible

38

what joint is the TMJ

modified hinge type synovial joint

39

what are the 2 actions of TMJ

hinge and gliding actions

40

where is the articular disc between?

temporal bone and mandible

41

what are the 3 specifics of the articular disc

-concavoconvex superior surface
-concave inferior surface
-increases in thickness toward periphery

42

whats the significance of the concavoconvex superior surface?

fit articular tubercle & mandibular fossa

43

whats the significance of the concave inferior surface

to fit around mandibular condyle

44

What is the significance of the increased thickness toward periphery?

attaches the articular capsule

45

what are the 2 accessory ligaments of TMJ

stylomandibular ligament
sphenomandibular ligament

46

what does the stylomandibular ligament separate?

parotid and submandibular glands

47

what is the sphenomandibular ligament separated by?

capsule by maxillary a and auriculotemporal n

48

what does the facial nerve innervate?

facial expression muscles

49

what are the 3 contents of the temporal fossa

temporal fat pad
temporalis m
masseter muscle
neurovasculature

50

what 3 arteries are in the temporal fossa?

middle temporal artery
superficial temporal artery
deep temporal arteries

51

what does the buccal nerve supply?

buccal mucosa and skin of cheek

52

what does the inferior alveolar nerve enter?

mandibular foramen

53

what does the lingual nerve innervate?

anterior 2/3 of the tongue