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301 MEDIMAGE > 1b. Skull HAL - Worksheet & Radiology > Flashcards

1b. Skull HAL - Worksheet & Radiology Flashcards

1
Q

what is the skull a term used to denote

A

denotes the cranium

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2
Q

what is the cranium made uo of

A

facial bones and bones of cranial cavity and mandible

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3
Q

is the frontal bone paired

why/why not

A

no

paired in fetus due to metopic suture but fused in adult

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4
Q

is the temporal bone paired

A

paired

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5
Q

is the occipital bone paired

A

no

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6
Q

is the sphenoid bone paired

A

no

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7
Q

is the ethmoid bone paired

A

no

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8
Q

is the maxilla bone paired

why/why not

A

due to maxillary suture

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9
Q

is the parietal bone paired

why/why not

A

paired

due to sagittal suture

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10
Q

is the palatine bone paired

A

paired

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11
Q

is the zygoma bone paired

A

paired

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12
Q

is the nasal bone paired

why/why not

A

paired

due to suture

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13
Q

is the lacrimal bone paired

A

paired

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14
Q

is the vomer bone paired

A

unpaired

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15
Q

is the inferior nasal concha bone paired

A

paired

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16
Q

what 7 bones are definitely seen in the anterior view of the skull

what 3 are partially seen in the anterior view

A 
frontal
sphenoid
nasal
vomer
maxilla
zygoma
mandible

a little: lacrimal, temporal, parietal

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17
Q

what 9 bones are definitely seen in the lateral view of the skull

which bone is partially seen in the lateral view

A 
temporal
occipital
frontal
zygomatic
nasal
maxilla
lacrimal
mandible
sphenoid greater wing

little bit of ethmoid in the orbit

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18
Q

what 5 bones are definitely seen in the posterior view of the skull

A 
occipital
parietal
temporal
maxilla
mandible
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19
Q

what 7 bones are definitely seen in the inferior view of the skull

A 
occipital
temporal
sphenoid
vomer
palatine
maxilla
zygoma
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20
Q

what bones does the coronal suture divide

A

frontal from both the parietals

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21
Q

what bones does the sagittal suture divide

A

both the parietals

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22
Q

what bones does the lamboid suture divide

A

occipital from both parietals

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23
Q

what bones does the squamous suture divide

A

temporal from parietal on each side

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24
Q

is there a suture line between the sphenoid and frontal bones

A

no

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25
Q

where is the glabella located on the head

A

most anterior midline point on the frontal bone

above frontonasal suture

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26
Q

where is the nasion located on the head

A

midline point where the 2 nasal bones and the frontal bone intersect

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27
Q

where is the acanthion located on the head

A

tip of the anterior nasal spine

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28
Q

where is the external occipital protuberance located on the head

what is it also known as

A

on the occipital bone

aka: inion

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29
Q

where is the vertex located on the head

A

most superior point of cranium

little bit posterior to bregma

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30
Q

what is the bregma

A

where coronal and sagittal sutures meet

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31
Q

where is the foramen magnum located on the head

what structures are either side of the foramen magnum and what do they do

A

on occipital bone

condyles articulate with the C1 vertebrae/atlas

32
Q

where is the external auditory meatus located on the head

A

temporal bone

33
Q

where is the mastoid process located on the head

what does it serves as

A

temporal bone

attaches muscles of neck

34
Q

where is the styloid process located on the head

A

temporal bone

35
Q

where is the zygomatic arch located on the head

A

formed by zygomatic and temporal bones

36
Q

where is the lateral canthus of eye located on the head

A

on the skull slightly medially to the most lateral part of the orbital margin (ectochonion)

outer corner of eye

37
Q

where is the nasal septum located on the head

A

inside nasal cavity

38
Q

where is the condyle of mandible located on the head

what joint does it form

A

mandible bone

forms temporomandibular joint with temporal bone

39
Q

where is the angle of mandible located on the head

what is it also known as

A

on mandible (angled part on the side of the jaw)

gonion

40
Q

where is the mental protuberance located on the head

A

mandible

point of chin anteriorly

41
Q

what are the 3 portions of the interior aspect of the cranium

A

anterior/middle/posterior cranial fossa

42
Q

what 3 bones make up the anterior fossa

A

frontal
ethmoid
sphenoid lesser wing

43
Q

what 2 bones make up the middle fossa

A

sphenoid (except lesser wing)

temporal bone

44
Q

what 2 bones make up the posterior fossa

A

temporal (posterior part of petrous pyramid)

occipital bone

45
Q

were is the crista galli located in terms of the bone its part of and which cranial fossa it resides in

A

ethmoid

anterior fossa

46
Q

were is the lesser wing of sphenoid located in terms of the bone its part of and which cranial fossa it resides in

A

sphenoid

anterior fossa

47
Q

were is the greater wing of sphenoid located in terms of the bone its part of and which cranial fossa it resides in

A

sphenoid

middle fossa

48
Q

were is the sella turcica located in terms of the bone its part of and which cranial fossa it resides in

what else is it known as

A

sphenoid

middle fossa

aka: pituitary/hypothalamus fossa

49
Q

were is the anterior and posterior clinoid process located in terms of the bone its part of and which cranial fossa it resides in

A

sphenoid

middle fossa

50
Q

were is the dorsum sellae located in terms of the bone its part of and which cranial fossa it resides in

A

sphenoid

middle fossa but arguable in posterior fossa too

51
Q

were is the petrous pyramid located in terms of the bone its part of and which cranial fossa it resides in

A

temporal bone

both middle and posterior fossa as the petrous ridge denotes the boundary

52
Q

were is the petrous ridge located in terms of the bone its part of and which cranial fossa it resides in

A

temporal bone petrous pyramid

boundary of middle and posterior fossa

53
Q

what does the petrous pyramid house

in terms of ear and nerves/vessels

A

middle and internal ears

conduit for internal carotid artery and cranial nerves 7&8

54
Q

were is the internal acoustic meatus located in terms of the bone its part of and which cranial fossa it resides in

A

temporal bone petrous pyramid

posterior fossa

55
Q

were is the clivus located in terms of the bone its part of and which cranial fossa it resides in

A

occipital bone (base)

posterior fossa

56
Q

what are the 4 paranasal sinuses

A

frontal
maxillary
ethmoid
sphenoid

57
Q

what are the ethmoid sinuses divided into

A

anterior, middle and posterior ethmoid air cells

58
Q

what divides the sphenoid sinus into the pair

A

septum

59
Q

what does the optic canal transmit

A

cranial nerve 2

opthalmic artery

60
Q

what does the superior orbital fissure transmit

A

structures passing to/from orbit and face surrounding the orbit

cranial nerves 3-6 (occulomotor, trochlear, trigeminal and abducens)

61
Q

what does the interior orbital fissure transmit

A

structures passing to/from the orbit and the face surrounding the orbit including branches of the cranial nerve 5 - trigeminal

62
Q

what does the foramen rotundum transmit

A

maxillary division of cranial nerve 5 - trigeminal

63
Q

what does the foramen ovale transmit

A

mandibular division of cranial nerve 5 - trigeminal

64
Q

what does the foramen spinosum transmit

A

middle meningeal artery

65
Q

what does the foramen lacerum transmit

A

internal carotid artery into cranial cavity through its inner half

66
Q

what does the jugular foramen transmit

A

cranial nerves 9-11 (glossopharyngeal, vagus and accessory)

internal jugular vein

67
Q

what does the carotid canal transmit

what does it continue into

A

internal carotid artery

continues into the foramen lacerum

68
Q

what is the relation between the position of the foramen lacerum and carotid canal

A

F. lacerum passes obliquely through carotid canal

69
Q

which bone/cranial fossa is the optic canal located in

A

border of anterior/middle fossa

middle of sphenoid bone

70
Q

which bone/cranial fossa is the superior orbital fissure located in

A

middle fossa

lower edge of greater wing of sphenoid

71
Q

which bone/cranial fossa is the internal orbital fissure located in

A

in orbits

72
Q

which bone/cranial fossa is the foramen rotundum located in

A

middle fossa

where the sphenoid greater wing and middle body join

73
Q

which bone/cranial fossa is the foramen ovale located in

A

middle fossa

lower point of greater wing of sphenoid

74
Q

which bone/cranial fossa is the foramen lacerum located in

A

border of middle/posterior fossa

lower edge of where sphenoid greater wing and body join

75
Q

which bone/cranial fossa is the foramen spinosum located in

A

middle fossa

lower point of greater wing of sphenoid
lower than foramen ovale

76
Q

which bone/cranial fossa is the jugular foramen located in

A

posterior fossa

middle of edge between petrous ridge of temporal bone and occipital bone

77
Q

which bone/cranial fossa is the carotid canal located in

A

border of middle/posterior fossa

lower edge of where sphenoid greater wing and body join

(same as foramen lacerum)

301 MEDIMAGE (18 decks)

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