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PT612 > Skull and Cranial Nerves > Flashcards

Skull and Cranial Nerves Flashcards

1
Q

how many bones form the skull

A

22 bones

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2
Q

Cranium is considered:

A

the skull minus the mandible

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3
Q

Neurocranium is made up of the

A

basicranium and cranial vault

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4
Q

Neurocranium does what

A

protects and encloses the brain

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5
Q

basicranium does what

A

surrounds the opening for the cranial nerves and major vessels to enter and exit the cranial cavity

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6
Q

the basicranium and cranial vault surround the

A

cranial cavity

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7
Q

viscerocranium forms the

A

facial region

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8
Q

viscerocranium encloses the

A

special senses and opening for the gut tube

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9
Q

the special senses openings are the

A

nasal cavity
orbit
oral cavity

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10
Q

The 3 types of bones in the skull

A

Cranial Base Bones
Intramembranous Bones
Pharyngeal Arch Bones

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11
Q

Cranial base bones form the

A

base of the basicranium and neurocranium

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12
Q

cranial base bones have _______ ossification

A

endochondrial ossification

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13
Q

Intramembranous bones for the

A

cranial vault, sides and facial bones

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14
Q

intramembranous bones have ______ ossification

A

intramembranous

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15
Q

Pharyngeal arch bones are derived from

A

cartilage or pharyngeal arches

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16
Q

pharyngeal arch bones form

A

small accessory bones of head

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17
Q

pharyngeal arch bones have ______ ossification

A

endochondrial ossification

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18
Q

the 5 Basicranium bones

A

Ethmoid
Sphenoid
Temoral (2)
Occipital

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19
Q

basicranium bones develop in or near the

A

midline of the head

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20
Q

in close association to

A

the nervous system

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21
Q

basicranium bones form the

A

cranial base which cradles the brain

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22
Q

all ______ and ______ enter/exit the cranial cavity via _______ in between these 5 bones

A

cranial nerves
major blood vessels
foramina

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23
Q

intramembranous bones for the

A

cranial valut and facial skeleton

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24
Q

cranial valut bones

A

frontal
parietal (2)
temporal (2) (squamous)

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25
Q

Facial Skeleton bones

A 
zygomatic (2)
nasal (2)
vomer
lacrimal (2)
palatine (2)
maxillary (2)
interior nasal concha (2)
mandible
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26
Q

_______, _______, and _______ are cranial base bones and can contribute to cranial vault

A

temporal
sphenoid
occipital

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27
Q

4 pharyngeal arch bones

A

hyoid
malleous
incus
staples

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28
Q

hyoid is from which arches

A

2nd and 3rd

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29
Q

1st arch bones

A

malleous and incus

30
Q

2nd arch bones

A

staples

31
Q

they are tiny bones located in the middle ear or

A

tympanic cavity

32
Q

tympanic cavity means surrounded by:

A

temporal bone

33
Q

these tiny bones do what

A

transmit sound from eardrum to inner ear

34
Q

I

A

Olfactory

35
Q

II

A

Optic

36
Q

III

A

Oculomotor

37
Q

IV

A

Trochlear

38
Q

V

A

Trigeminal

39
Q

VI

A

Abducent

40
Q

VII

A

Facial

41
Q

VIII

A

Vestibulocochlear

42
Q

IX

A

Glossopharyngeal

43
Q

X

A

Vagus

44
Q

XI

A

Accessory

45
Q

XII

A

Hypoglossal

46
Q

CN I exits through

A

foraminia in cribiform plate (ethmoid)

47
Q

CN II and Ophthalmic a. exit through

A

Optic Foramen (sphenoid)

48
Q

CN III, IV, V1, and VI and ophthalmic v. exit through

A

Superior Orbital Fissure (sphenoid)

49
Q

V2 exits

A

foramen rotundum (sphenoid)

50
Q

V3 exits

A

foramen ovale (sphenoid)

51
Q

middle meningeal artery & vein exit

A

foramen spinosum (sphenoid)

52
Q

CN VII & VIII exit

A

internal auditory meatus (temporal)

53
Q

CN IX, X, XI and internal jugular vein exit

A

jugular foramen (temp/occipital)

54
Q

CN XII exits

A

hypoglossal canal (occipital)

55
Q

Structure:

A

Function:

56
Q

carotid canal

A

internal carotid artery

sympathetic NS

57
Q

foramen magnum

A

spinal cord
spinal root of accessory n.
vertebral aa.

58
Q

nasolacrimal canal

A

nasolacrimal duckt

59
Q

stylomastod foramen

A

Facial Nerve CN VII

60
Q

pharyngeal tubercle

A

pharyngeal raphe (superior constrictor m)

61
Q

genial tubercle (mental spine)

A

genioglossus and geniohyoid mm.

62
Q

mandibular foramen

A

inferior alveolar N. A. & V.

63
Q

inferior orbital fissure

A

branch of V2

branch of maxillary a.

64
Q

pterygopalatine fossa

A

pterygopalatine ganglion
V2
Maxillary artery & vein

65
Q

pterygomaxillary fissure

A

entrance into pterygopalatine fossa from infratemportal fossa
maxillary a. & v.

66
Q

sphenopalatine foramen

A

from pterygopalatine fossa to nasal cavity

branch of V2

67
Q

pterygoid canal

A

from cranium near foramen lace rum to pterygopalatine fossa

nerve to fthe pterygoid cnala (greater + deep petrosal nn)

68
Q

Pterygoid hamuus

A

on end of medial pterygoid plate
attachment for pterygomandibular rap he
tensor veli palatini m bends around to reach soft palate

69
Q

auditory tube

A

from nasopharynx to tympanic cavity

70
Q

styloid process

A

attachment site for styloglossus

stylopharyneus and stylohyoid mm and stylohyoid ligament

71
Q

mastoid process

A

attachment site for posterior belly of diagastric and SCM

PT612 (9 decks)

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