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Anatomy exam 5 > parotid and temporal regions + TMJ > Flashcards

parotid and temporal regions + TMJ Flashcards

1
Q

what artery and vein run through the parotid gland

A

retromandibular vein and external carotid a

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2
Q

parotid gland is inferior to what

A

external acoustic meatus

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3
Q

swelling of parotid gland does what to ear

A

pushes ear superolateral (Mumps)

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4
Q

what forms the retromandibular vein

A

superficial temporal and maxillary vein

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5
Q

where does the retromandibular vein enter the parotid gland

A

posterior to the ramus of the mandible

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6
Q

the retromandibular vein drains into:

A

splints into 2 divisions that drain into the external jugular vein(posterior) and internal jugular vein

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7
Q

distal postion of external carotid artery lies deep within what

A

parotid gland

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8
Q

what vein does the external carotid artery parallel

A

retromandiular vein

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9
Q

where does the external carotid artery split into its 2 terminal branches

A

posterior to the mandibular neck

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10
Q

what are the terminal branches of the external carotid artery

A

superficial temporal A

Maxillary A

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11
Q

order of stuff going through the parotid gland

A

lateral: facial nerve
retromandibular vein
medial: external carotid

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12
Q

how does the facial nerve leave the cranium

A

stylomastoid foramen

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13
Q

what plexus is formed by the facial nerve within the parotid

A

the parotid plexus

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14
Q

cervical branches of the facial nerve serve

A

the platysma

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15
Q

what is the parotid bed

A

the stuff behind the parotid gland

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16
Q

anterior and posterior bones of parotid bed

A

ramus

mastoid process

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17
Q

the fossa above and below the zygomatic arch

A

above: temporal fossa
Below: infratemporal fossa

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18
Q

2 parts of the ingratemporal fossa

A

one deep to ramus of mandibule

one deep to masseter but superficial to ramus

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19
Q

how superior does the temporal fossa extend

A

to the superior temporal line

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20
Q

what separates the superficaial temporal compartment from the deep

A

the temporal muscle

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21
Q

Contents of the temporal fossa

A

temporal fat pad
temporalis m
Neurovasculature

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22
Q

what coves the temporalis m

A

thick temporal facia

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23
Q

what works with the temporalis m to elevate mandible despite not being part of the temporal fossa

A

masseter m

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24
Q

where does the superficial temporal artery travel

A

between the tmj and external accoustic meatus (travels with the auriculo temporal)

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25
Q

where the maxillary artery is in relation to the lateral ptygoid

A

just lateral to it

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26
Q

the association between the auriculotemporal n and the middle meningeal artery

A

the auriculotemporal nerve bifurcates around the middle meningeal artery but then comes back together

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27
Q

trigeminal N mandibular division branches

A 
auriculotemporal nerve
anterior and posterior deep temporal nerve
meningeal branch n
Medial pterygoid
tensor tympani
tensor veli palatini n
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28
Q

travel of auriculotemporal nerve

A

with superficial temporal a and vein
deep to parotid galnd, posteior to TMJ
runs between auricle and condyle of the mandible

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29
Q

the auriculotemporal nerve does what

A

provides sensory innervation to TMJ and lateral scalp

carries parasympa fibers from CN IX into parotid gland

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30
Q

travel of the anterior and posterior deep temporal nerves

A

passes superior to lateral pterygoid m and deep to temporalis m

31
Q

Borders of the infratemporal fossa

A

Lateral: ramus of mandible
Medial: lateral pterygoid plate
anterior: Maxilla
Posterior: tympanic plate, mastoid & styloid processes

32
Q

what is found on the roof og the infratemporal fossa

A

inferior surface of the greater wing of the sphenoid; temporal bone
Foramen Ovale
Foramen Spinosum

33
Q

infratemporal fossa contents

A 
temporalis m
medial and lateral pterygoid mm
maxillary artery + branches
Pterygoid plexus of veins
mandibular divion of CN V (V3)
Posterior superior alveolar n (V2)
Chorda tympani n branch of CN VII (Facial)
Otic ganglion
lesser petrosal nerve
34
Q

where is the maxillary vein

A

when the pterygoid plexus converges right until it enters into the retromandibular vein

35
Q

major parts of the trigeminal n (CN V): Mandibular V3

A

Large sensory root + Small motor root

36
Q

where do the sensory and motor root of the mandibular devision of the trigeminal nerve meet

A

unite after passing through foramen ovale to enter the infratemporal fossa

37
Q

when the meningeal branch nerve of the mandibular devision of the trigeminal breaks off

A

immediately

38
Q

the anterior and posterior divions of the mandibular devision of the trigeminal n

A

anterior: small, mainly motor
- 1 sensory branch as buccal n
Posterior: large, mainly sensory
-1 motor branch as the mylohyoid n

39
Q

action of the tensor tympani

A

tighten up the oscicle bones against the membrane

40
Q

what innervate the medial pterygoid, tensor tympani and tesnor veli palatini

A

nerves from CN V3

41
Q

what do all CN V nerves have what to supply the dura

A

have a recurrent meningeal branch to supply the dura

42
Q

Branches of CN V3

A

auriculotemporal N (Sensory)
Masseteric and deep temperal (A & P Nn) (motor)
Medial and Lateral Pterygoid Nn (Motor)
Buccal N (Sensory)
Inferior Alveolar & Lingual Nn (sensory)

43
Q

nerves of matication

A

Masseteric N
Deep Temporal Nn
MEdial and Lateral Pterygoid Nn

44
Q

nerves of mastication run with what

A

with similariliy named arteries

45
Q

what does the Deep temporal Nn supply

A

termporalis m

46
Q

what does the masseteric Nerve supply

A

masseter m

47
Q

what does the medial and lateral pterygoid Nn supply

A

medal and lateral muscles

48
Q

what does the masseteric N pass through

A

the mandibular notqch

49
Q

where does long buccal N run

A

on the superficial surface of the pterygoids

50
Q

what is the special sensory branch of CN VII

A

chorda tympani N (CN VII)

51
Q

what does CHorda Tympani N join with

A

Lingual N posteriorly

52
Q

what does the Chorda Tympani N do

A

supplies Parasympa innervation to lower 2 salivary glands

Carries taste fibers from anterior 2/3 of tongue

53
Q

what makes up the TMJ

A

portions of the temporal bone and mandible

54
Q

what type of joint is the TMJ

A

modified hinge type synovial joint

55
Q

what surrounds the TMJ

A

a relatively lax articular capsule surrounding joint (More flexible

56
Q

what is the lateral thickening of the articular capsule of the TMJ

A

lateral temporomandibular ligament

57
Q

what is contained in the articular capsule of the TMJ

A

articular disc

58
Q

what actions are done by the TMJ

A

hinge and gliding actions

59
Q

what ligaments help to support the TMJ

A

LAteral Ligament
Sphenomandibular ligament
stylomandibular ligament

60
Q

what cavities are made by the articular disk

A

superior and inferior

61
Q

the posterior attachments of the articular disk

A

the retrodiscal zone (for nourishment)

62
Q

muscles for protrusion

A

lateral pterygoid

assisted by medial ptergoid

63
Q

muscles for retraction

A

posterior fibers of temporalis
deep part of masseter
geniohyoid
digastric

64
Q

muscles of elevation

A

temporalis
masseter
medial pterygoid

65
Q

muscles of depression

A

gravity
lateral pterygoid
digastric geniohyoid and mylohyoid

66
Q

Shape of the articular disk

A

concavoconvex superior surface
concave inferior surface
increases in thickness toward periphery

67
Q

why is the superior surface of the articular disk concavoconcex

A

fit articular tubercle and mandibular fossa

68
Q

why is the inferior surface of the articular disk concave

A

fit around mandibular condyle

69
Q

what does the stylomandibular ligament connect

A

styloid process to posterior border of mandibular ramus

70
Q

what does the stylomandibular ligament separates

A

parotid and submandibular glands

71
Q

what does the sphenomandibular ligament connect

A

spine of sphenoid bone to lingula of mandible

72
Q

what separates the sphenomandibular ligament from the capsule

A

maxillary a and auriculotemporal n

73
Q

what arteries supply the TMJ

A

branches from the superficial temporal A
brnaches from deep auricular A and anterior tympanic
also some from masseteric

Anatomy exam 5 (18 decks)

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