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anat 316 > the skull > Flashcards

the skull Flashcards

1
Q

What is purpose of neurocranium

A

surrounds and protects the brain AND articulate with vertebral column

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2
Q

What is the purpose of the viscerocranium

A

make up facial skeleton, support and protect entrance to respiratory and digestive tracts

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3
Q

the frontal bone belongs to which cranium

A

neurocranium

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4
Q

the parietal bones belong to which cranium

A

neurocranium

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5
Q

the occipital bone belong to which cranium

A

neurocranium

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6
Q

the temporal bones belong to which cranium?

A

neurocranium

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7
Q

the ethmoid bone belongs to which cranium?

A

neurocranium

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8
Q

the sphenoid bone belongs to which cranium

A

neurocranium

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9
Q

which bones are in the neuroranium?

A

frontal, parietal, temporal, occipital, sphenoid, ethmoid

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10
Q

the maxillae belongs to which cranium

A

viscerocranium

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11
Q

the palatine bones belong to which cranium

A

viscerocranium

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12
Q

the nasal bones belong to which cranium

A

viscerocranium

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13
Q

the inferior nasal conchae belong to which cranium

A

viscerocranium

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14
Q

the zygomatic bones belong to which cranium

A

viscerocranium

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15
Q

the lacrimal bones belong to which cranium

A

viscerocranium

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16
Q

the vomer belongs to which cranium

A

viscerocranium

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17
Q

the mandible belongs to which cranium

A

viscerocranium

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18
Q

what bones are part of viscerocranium

A

maxillae, palatine, nasal, inf nasal, zygomatic, lacrimal, vomer, mandible (PMINZ MVL)

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19
Q

what does the frontal bone do?

A

make up forehead and a portion of the eye orbit

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20
Q

what does sphenoid bone do?

A

extend from one side of the brain to the other - forms part of eye orbit and base of skull

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21
Q

what do the temporal bones do?

A

make up temples/side of skull

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22
Q

what does ethmoid bone do?

A

contributes to nasal cavity and eye orbit

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23
Q

what do parietal bones do?

A

make up sides of the top of the head

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24
Q

what are the accessories of the temporal bone?

A

mastoid process, styloid process, zygomatic process

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25
Q

what is the external acoustic meatus for?

A

The external acoustic meatus is part of the temporal bone - it is the entrance to the ear canal

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26
Q

where is the mastoid process of the temporal bone?

A

Behind and below the ears

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27
Q

which features of the temporal bone are important for muscle attachment

A

mastoid process and styloid process

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28
Q

what does the zygomatic process of the temporal bone make up?

A

cheek bones

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29
Q

on what bone can you find the mandibular fossa?

A

on the temporal bone

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30
Q

what does the manibular fossa do?

A

articulates with mandible

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31
Q

what does occipital bone do

A

makes up base of skull, articulates with vertebral column

32
Q

what is the foramen magnum

A

feature of occipital bone - allows for passage of spinal cord

33
Q

what is the occipital condyle

A

feature of occipital bone - articulates with C1 (atlas)

34
Q

what are the 3 features of the ethmoid bone?

A

crista galli (+cribiform plate), superior nasal concha, middle nasal concha

35
Q

what is the crista galli of the ethmoid bone?

A

perpendicular projection of the ethmoid bone - acts as anchoring point for membranes surrounding the brain

36
Q

what does the cribiform plate of the ethmoid allow?

A

it allows for branches of CN1 to pass through

37
Q

what is pterygoid processses

A

feature of sphenoid bone - act as an attachment point of muscles of mastification

38
Q

what is sella turcica?

A

feature of sphenoid bone - this is depression where pituitary gland sits

39
Q

what are the 7 foramina of the sphenoid bone?

A

inferior orbital fissure, optic canal, superior orbital fissure, foramen spinosum, foramen rotundum, foramen ovale, foramen lacerum,

40
Q

what does optic canal of sphenoid bone allow for?

A

Passage of CN2 - optic nerve

41
Q

what does superior oribital fissure allow for?

A

passage of CN3,CN4,CN5(1),CN6

42
Q

what does foramen rotundum of sphenoid bone allow for?

A

passage of CN5(2)

43
Q

what does foramen ovale of spehnoid bone do?

A

passage of CN5(3)

44
Q

what are the 3 foramina of the temporal bone?

A

carotid canal and extrernal/internal acoustic meatus and jugalar foramen (this one is both temporal and occipital)

45
Q

what does the carotid canal of the temporal bone allow for?

A

passage of the internal carotid artery

46
Q

what does the internal acoustic meatus of the temporal bone allow for?

A

passage of CN8

47
Q

what are the 2 features of the occipital bone?

A

occipital condyles and the foramen magnum

48
Q

what does jugular foramen allow for?

A

passage of CN 9,10,11

49
Q

what does hypoglossal foramen allow for?

A

passage of CN 12

50
Q

what does the coronal suture seperate?

A

frontal bone and parietal bone

51
Q

what does lambdoid suture seperate?

A

parietal bone and occipital bone

52
Q

what does squamous suture seperate?

A

temporal bone and parietal bone

53
Q

what does saggital suture seperate?

A

parietal bone and parietal bone

54
Q

what are sutures?

A

fibrous immovable joints btw skull bones

55
Q

what does the anterior cranial fossa hold?

A

frontal lobe of the brain

56
Q

what does the middle cranial fossa hold

A

temporal lobes of the brain

57
Q

what does the posterior cranial fossa hold

A

cerebellum of the brain

58
Q

what bones make up anterior cranial fossa?

A

frontal, ethmoid, sphenoid

59
Q

what bones make up middle cranial fossa?

A

sphenoid and temporal bones

60
Q

the nasal bones belong to which cranium?

A

viscerocranium

61
Q

the maxillae belong to which cranium

A

viscerocranium

62
Q

the zygomatic bones belong to which cranium

A

viscerocranium

63
Q

the inferior nasal conchae belong to which cranium

A

viscerocranium

64
Q

the lacrimal bones belong to which cranium

A

viscerocranium

65
Q

the palatine bones belong to which cranium

A

viscerocranium

66
Q

the vomer belongs to which cranium?

A

viscerocranium

67
Q

the mandible belongs to which cranium

A

viscerocranium

68
Q

what does the maxilla make up

A

the two bones of the maxilla make up the upper jaw

69
Q

what do the zygomatic bones articulate with?

A

the zygomatic process of the temporal bones

70
Q

what do the lacrimal bones make up?

A

medial eye orbit

71
Q

what does the condyler process of the mandible articulate with

A

the skull

72
Q

what is the temporomandibular joint?

A

the temperomandibular joint is the only movable joint of the skull - it is an articulation between the condyler process of the mandible and the mandibular fossa of the temporal bone

73
Q

what does the maxillae make up?

A

the roof of the mouth (hard palate)

74
Q

what are the ossicles?

A

small bones involved in hearing - houses in temporal bone. Include the malleus, the incus, and the stapes

75
Q

what is the hyoid bone?

A

floating bone in neck important for tongue and swallowing muscle attachment

anat 316 (22 decks)

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