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2 MJM > AP06 - Skull and Meninges > Flashcards

AP06 - Skull and Meninges Flashcards

1
Q

What are the articulating urfaces of the TMJ?

A

mandibular fossa and articular tubercle with the mandibular condyle

they are split by and articular disc

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2
Q

What kind of cartilage is used in the TMJ?

A

fibrocartilage, not hyaline cartilage

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3
Q

What are the 3 ligaments of the TMJ?

A

lateral ligament
sphenomandibular ligament
stylomandibular ligament

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4
Q

Which nerves might be damaged by anterior dislocation of the mandible?

A

auriculotemporal nerve

facial nerve

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5
Q

What is the divot above the orbit called?

A

the supraorbital notch

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6
Q

Which hole is placed latero-inferiorly to the orbit?

A

zygomatofacial foramen

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7
Q

What hole is placed inferior to the orbit?

A

The infra-orbital foramen

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8
Q

Which hole lies inferior to the infra-orbital foramen?

A

the maxillary foramen

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9
Q

What passes through the mental foramen?

A 
mental nerve (infeior avleolar)
inferior alveolar arteries
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10
Q

What structure marks to convergence of the sagittal and lamdoidal sutures?

A

lambda

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11
Q

To what structure of the skull does the SCM attach to?

A

the mastoid process

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12
Q

What is the protuberance at the back of the skull?

What is its’ highest point?

A

the external occipital protuberance

inion

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13
Q

Which bones form the zygomatic arch?

A

zygomatic and temporal bones

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14
Q

Name 3 contents of the foramen magnum

A

apical ligament of dens
medulla
spinal cord

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15
Q

Name 1 content of the foramen ovale

A

mandibular nerve (CNV)

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16
Q

Name 3 nerves of the superior orbital fissure

A

occulomotor nerve
abducens nerve
trochlear nerve

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17
Q

What nerve passes through the foramen rotundum?

A

maxillary nerve (CNV)

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18
Q

Name one nerve and one artery passing through the foramen spinosum

A

middle meningeal artery

meningeal branch of mandibular nerve

19
Q

Which 2 cranial nerves pass through the internal acoustic meatus?

A

facial nerve

vestibulocochlear nerve

20
Q

What is more superior, the mandibular foramen or the myohyloid groove?

A

mandibular foramen

21
Q

What lies anterior to the myohyloid groove?

A

the myohyloid line

22
Q

What 2 structures lie on the posterior surface of the front of the mandible?

A

genial tubercles

digastric fossa

23
Q

What are the 2 parts of the obicularis oculi?

A

palpebral (closes eyes gently)

orbital (forcefully)

24
Q

What muscle sits on the bridge of the nose?

A

procerus

25
Q

What muscle is both on the front and back of the head?

A

occipitofrontalis

26
Q

What 3 external muscles control ear movement?

A

superior auricular
anterior auricular
posterior auricular

27
Q

Which muscles draw the eyebrow medially and downwards?

A

corrugator supercilli

28
Q

What are the 2 divisions of nasalis?

A

transverse

alar

29
Q

What are the functions of alar nasalis and depressor septi?

A

alar nasalis - draws cartilage down and laterally, opening nostrils

depressor septi - pulls nose down

30
Q

What is the function of depressor anguli oris?

A

draws corner of mouth down and laterally

31
Q

What is the function of depressor labii inferioris

A

dras lower lip down and laterally

32
Q

What is the function of mentalis?

A

bottom lip protusion lol

33
Q

What is the function of risorus?

A

retracts mouth corners

34
Q

What is the function of zygomaticus major

A

draws corner of mouth up and laterally

35
Q

What is the function of zygomaticus minor?

A

draws upper lip upward

36
Q

What is the function of levator labii superioris?

A

raises upper lip, helps form nasolabial furrow

37
Q

What is the function of levator labii superioris alaeue nasi?

A

raises upper lip and open nostril

38
Q

What is the function of levator anguli oris?

A

raises corner of mouth, helps form nasolabial furrow

39
Q

Which 2 muscles form the nasolabial furrow?

A

levator anguli oris

levator labii superioris

40
Q

What muscle closes and protrudes lips?

A

obicularis oris

41
Q

What does buccinator do?

A

compresses cheek against teeth

42
Q

What are the 4 muscles of mastication?

A

masseter
temporalis
lateral ptygoid
medial pterygoid

43
Q

Which TMJ ligament is strongest, what movement does it restrict?

A

ltaeral ligament

posterior dislocation

44
Q

What nerve injury might effect facial muscle function?

A

extracranial lesion (facial nerve)

2 MJM (28 decks)

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