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SP16 Anatomy Exam 2 > Temporal & TMJ > Flashcards

Temporal & TMJ Flashcards

1
Q

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

A

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

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2
Q

Components of the temporal fossa

A 
Temporal fat pad
Temporal fascia
Temporalis muscle
Middle temporal artery
Superficial temporal artery
Deep temporal arteries
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3
Q

RElationship of Parotid to Ear

A

Just inferior/anterior to external acoustic meatus

Swelling of gland will push ear superolateral (causes Mumps-viral infection)

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4
Q

what is the retromandibular vein formed by?

A

superficial and temporal maxillary vein

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5
Q

Where does the two divisions of retromandibular vein drain into?

A

IJV and EJV

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6
Q

The external carotid artery’s relationship with retromandibular vein

A

it is parallel and deep within it

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7
Q

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

A

superficial temporal artery and maxillary artery

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8
Q

what nerve innervates all mm of facial expression?

A

facial nerve

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9
Q

where does the facial nerve exit the cranium?

A

stylomastoid foramen

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10
Q

what does the facial nerve form within the parotid gland?

A

parotid plexus

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11
Q

what are the 6 branches of the facial nerve?

A 
temporal branches
zygomatic branches
buccal
marginal mandibular branch
cervical branch
posterior auricular nerve
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12
Q

what bones does the temporal fossa incorporate?

A 
frontal
parietal
temporal
sphenoid
zygomatic
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13
Q

The trigeminal nerve V3 division is called what

A

mandibular

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14
Q

what 2 divisions does V3 have

A

anterior and posterior

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15
Q

What is the function of anterior division

A

small and mainly motor EXCEPT BUCCAL NERVE (SENSORY)

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16
Q

What is the function of the posterior branch of V3

A

larger, sensory EXCEPT MYLOHYOID NERVE (MOTOR)

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17
Q

the auriculotemporal nerve travels with what?

A

superficial temporal a and v

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18
Q

what does the auriculotemporal nerve innervate?

A

sensory to TMJ and lateral scalp

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19
Q

what does the auriculotemporal nerve carry?

A

p-symp fibers from CN IX into parotid gland

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20
Q

what are the components of CN v3?

A

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

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21
Q

what are the muscles of the infratemporal fossa

A

temporalis, medial and lateral pterygoids mm

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22
Q

what are the a and v of infratemporal fossa?

A

maxillary and brs

pterygoid plexus of veins

23
Q

what are the nerves of the infratemporal fossa?

A 
mandibular division of CN V
Posterior superior alverolar n (V2)
chorda tympani n branch of CN VII
otic ganglion
lesser petrosal n
24
Q

what is the action of the medial pterygoid muscle?

A

elevates, protrudes, and rotates mandibule

25
Q

what is the action of the lateral pterygoid muscle?

A

opens, protudes, and rotates mandible

26
Q

What are the V3 branches?

A 
Auriculotemporal
masseteric and deep temporal nn
medial and lateral pterygoid n
buccal n
inferior alveolar and lingual n
27
Q

what are motor components of V3?

A

Auriculotemporal
masseteric and deep temporal nn
medial and lateral pterygoid n

28
Q

what are the sensory components of V3?

A

buccal n

inferior alveolar and lingual n

29
Q

What are the nerves of mastication?

A

masseteric n
deep temporal n
medial and lateral pterygoid n

30
Q

What does the masseteric n supply and run through?

A

supplies masseter m and goes through mandibular notch

31
Q

what does the deep temporal n supply

A

temporalis m

32
Q

what does the medal and lateral n supply?

A

supplies medial and lateral pterygoid muscles

33
Q

what is a special sensory branch of CN VII

A

chorda tympani n

34
Q

what does chorda tympani n join posteriorly?

A

lingual n

35
Q

what does the chorda tympani supply?

A

p-symp innervation to lower 2 salivary glands

36
Q

what does the chorda tympani n carry to the tongue?

A

taste fibers from anterior 2/3 of tongue

37
Q

what is the TMJ formed by?

A

portions of temporal bone and mandible

38
Q

what joint is the TMJ

A

modified hinge type synovial joint

39
Q

what are the 2 actions of TMJ

A

hinge and gliding actions

40
Q

where is the articular disc between?

A

temporal bone and mandible

41
Q

what are the 3 specifics of the articular disc

A
  • concavoconvex superior surface
  • concave inferior surface
  • increases in thickness toward periphery
42
Q

whats the significance of the concavoconvex superior surface?

A

fit articular tubercle & mandibular fossa

43
Q

whats the significance of the concave inferior surface

A

to fit around mandibular condyle

44
Q

What is the significance of the increased thickness toward periphery?

A

attaches the articular capsule

45
Q

what are the 2 accessory ligaments of TMJ

A

stylomandibular ligament

sphenomandibular ligament

46
Q

what does the stylomandibular ligament separate?

A

parotid and submandibular glands

47
Q

what is the sphenomandibular ligament separated by?

A

capsule by maxillary a and auriculotemporal n

48
Q

what does the facial nerve innervate?

A

facial expression muscles

49
Q

what are the 3 contents of the temporal fossa

A

temporal fat pad
temporalis m
masseter muscle
neurovasculature

50
Q

what 3 arteries are in the temporal fossa?

A

middle temporal artery
superficial temporal artery
deep temporal arteries

51
Q

what does the buccal nerve supply?

A

buccal mucosa and skin of cheek

52
Q

what does the inferior alveolar nerve enter?

A

mandibular foramen

53
Q

what does the lingual nerve innervate?

A

anterior 2/3 of the tongue

SP16 Anatomy Exam 2 (14 decks)

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