Parotid and temporal Flashcards Preview

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Flashcards in Parotid and temporal Deck (56):
1

What is the shallow depression on the anterior surface of the condylar process?

Pterygoid fovea

2

Which portion of the temporal bone contains the temporal fossa?

Squamous

3

What portion of the temporal bone makes up the cheek bone?

zygomatic process of the temporal

4

What eminence borders the mandibular fossa?

Articular tubercle

5

What 2 landmarks does the tympanic portion of the temporal bone include?

External Auditory Meatus, styloid process

6

The spine of the sphenoid marks what 2 portions of the temporal bone?

Petrous and squamous

7

What is the strongest ligament of the TMJ?

lateral temporomandibular ligament

8

What portion of the sphenoid bone articulates with the temporal bone?

Greater wings

9

What are the hook-like projections on the ends of the pterygoid plates?

Pterygoid Hamulus

10

Which pterygoid plate does the medial pterygoid muscle attach to?

Lateral Pterygoid plate (medial surface)

11

Which head of the lateral pterygoid muscle attaches to the lateral portion of the lateral pterygoid plate?

Inferior head

12

Where does the superior head of the lateral pterygoid muscle insert?

pterygoid fovea, TMJ joint capsule, TMJ articular disk**

13

What branch/nerve feeds the pterygoid muscles?

Opthalmic branch of the trigeminal nerve

14

Where do the heads of the temporalis originate?

Deep: Inferior temporal line, Superficial: temporal fascia

15

What superficially covers the masticatory muscles?

Masserteric fascia

16

What fascia is the deep cervical fascia a part of?

Masserteric fascia

17

What forms the lateral and inferior border of the temporal fossa?

zygomatic arch

18

On what bone is the superior temporal line?

Parietal

19

Where does the temporalis insert?

the anterior (and sometimes lateral) portion of the coronoid process/ramus

20

What separates the temporalis heads?

Deep temporal fascia

21

What 3 muscles form the musclar line along the pteryomaxillary fissure?

inferior/superior head of lateral pterygoid, superficial head of medial pterygoid

22

How is the TMJ cartilage different from other joints?

it is covered by a relatively thick layer of fibrocartilage

23

What separates the opposing fibrocartilage surfaces of the TMJ

Articular disk

24

Anterior band

Portion of the articular disk bound to the anterior portion of the TMJ capsule

25

What part of the articular disk is thickest?

Posterior band

26

What does the articular disk divide in the TMJ?

Superior/inferior disk space

27

Where are depression/elevtion movements of the mandible accomplished in the TMJ?

inferior disk space

28

Where are anterior/posterior movements of the mandible accomplished?

Superior disk space

29

What is the connection between the posterior end of the articular disk and joint capsule?

Retrodiskal Tissue

30

What produces the TMJ click?

The articular disk sliding back and forth over the anterosuperior surface of the condyle

31

What divides the parotid gland?

Masseter

32

What fascia envelops the parotid gland?

Medial: masserteric fasic, Lateral: Parotid fascia

33

Exit foramen of the facial nerve?

Stylomastoid foramen

34

Where does the facial nerve bifurcate?

the parotid gland (temporofacial and cervicofacial divisions)

35

What is the path of the parotid duct?

anterior surface of the gland, over the lateral surface of the masseter, dives medial at the anterior margin of the masseter, pierces the buccinator to enter the oral cavity

36

What is the opening inside the mouth for the parotid duct?

Parotid papilla

37

Parotitis

Inflamation of the parotid gland. Blockage of the gland/duct. Increased size of papilla and gritty discharge into the mouth

38

Path of the posterior auricular artery

Off of ECA, deep t oparotid gland, posterior border of the external auditory meatus, crossing supramastoid crest

39

Where dose the ECA bifurcate?

Parotid gland

40

Path of the superior temporal artery

from parotid gland, runs superiorly along anterior border of EAM, gives rise to middle temporal artery at zygomatic process of temporal, branches over the surface of the temporalis

41

What are the borders of the mandibular segment of the maxillary artery?

Deep to neck of condylar process, superficial to sphenomandibularligament

42

Pterygoid segment of the maxillary artery borders

Deep to coronoid process/insertion of temporalis, lateral surface of lateral pterygoid muscle

43

Demarcation for pterygomaxillary segment of maxillary artery

The passage between the lateral pterygoid heads

44

Deep temporal arteries path

Off of pterygoid segment of Max artery, enter deep head of temporalis, astamose with middle temporal artery

45

Where is the maxiallry venous plexus?

Deep to coronoid process and temporalis, superficial to lateral pterygoid

46

What forms the anterior retromandibular vein?

Maxillary venous plexus, superficial temporal vein

47

Veins that form the EJV

Posterior retromandibular vein, posterior auricular vein

48

What veins run thru the parotid gland?

Anterior/posterior retroarticular veins

49

Veins that form the IJV

Anterior retromandibular vein+facial vein + lingual vein= Common truck, merges with IJV

50

Largest of trigeminal nerve branches

Mandibular

51

Foramen for mandibular division of trigeminal nerve

foramen ovale

52

Path of mandibular division

Exits via foramen ovale, deep to temporalis/coronoid process, superficial to pterygoids

53

Sensory paths of mandibular division

parotid, auriculotemporal, masseteric

54

Motor paths of mandibular division

4 muscles of mastication

55

4 muscles of mastication

temporalis, medial/lateral pterygoids, masseteric

56

3 neural components of parotid gland

Auriculotemporal (via otic ganglion), lesser petrosal nerve (via otic ganglion/glossopharyngeal nerve), superior cervical gangion/carotid plexus (sympathetic innervation)