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323 - anatomy > lecture 3: cerebrum > Flashcards

lecture 3: cerebrum Flashcards

1
Q

how many bones make up the neurocranium

A

8

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2
Q

which bones make up to neurocranum

A

parital bones (2)
occipital bone (1)
frontal bone (1)
ethmoid (1)
sphenoid (1)
Temporal (2)

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3
Q

what is the name of the skull cap

A

calvaria

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4
Q

how many bones make up the viscerocranium

A

14

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5
Q

how many fossa of the skull

A

3

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6
Q

what are the 3 skull fossa

A

ant
mid
post

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7
Q

which bones make up the anterior cranial fossa

A

frontal bone
ethmoid bone
lesser wings of the sphenoid bone

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8
Q

true or false: the greater wings of the sphenoid bones are part of the anterior cranial fossa

A

false, the lesser wings are

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9
Q

which bones make uo the middle cranial fossa

A

sphenoid bone
temporal bone
(parietal)

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10
Q

which bones make up the posterior cranial fossa

A

temporal
occipital
(parietal)

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11
Q

ventral side of the brain stem and cerebellum sits where

A

in posterior fossa

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12
Q

temporal lobes sit in which fossa

A

middle cranial

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13
Q

frontal lobes sit in which fossa

A

anterior cranial

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14
Q

what are the ridges of the brain called

A

gyri

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15
Q

what are the valleys of the brain called

A

sucli

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16
Q

what does the central sulcus seperate

A

frontal lobe (rostrally)
parietal lobe (caudally)

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17
Q

true or false: central sulcus separate the parietal and occipital lobes

A

false, the frontal and parietal

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18
Q

what does the lateral issue seperate

A

separates between the temporal lobe mentally and the frontal and parital lobes dorsally

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19
Q

which fissure delimits the two cerebral hemisphere

A

median longitudinal fissue

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20
Q

which fissure delimits the temporal bone

A

lateral fissure

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21
Q

which sulcus delimits the parietal and occipital lobes

A

parietooccipital sulcus

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22
Q

which sulcus lies between frontal and parietal lobes

A

central sulcus

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23
Q

true or false: the central fissure is not continuous with the lateral fissure

A

true

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24
Q

where is best to identify the parietooccipital sulcus

A

medially

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25
Q

what orientation are the pre central and post central gyri

A

dorsoventral

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26
Q

true or false: most gyro on the lateral surface of the brain are primarily in the dorsoventral direction

A

false, most in the rostrocaudal orientaiaion

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27
Q

which gyri lies rostral to central culcus

A

pre central gyris

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28
Q

which gyrus lies caudal to central sulcus

A

post central gyrus

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29
Q

what are the 3 frontal gyri

A

sup middle and inferior

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30
Q

what are the three regions of the inferior frontal gyrus

A

pars orbitalis
parts triangularis
pars opercularis

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31
Q

which region of the inferior frontal gyrus is most rostral

A

pars orbital

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32
Q

which region of the inferior frontal gyrus is most caudal

A

parts opercularis

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33
Q

which orientation are the frontal gyri in

A

rostrocaudal

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34
Q

which sulcus separates the superior and inferior parietal lobules

A

intraparietal sulcus

35
Q

where does the intra parietal sulcus meet the post central sulcus

A

rostrally

36
Q

true or false: the angular sulcus separates the superior and inferior parietal lobules

A

false, the intra parietal sulcus does

37
Q

what are the two important gyri of the inferior parietal lobule

A

angular gyrus
supra marginal gyrus

38
Q

how can you find the supra marginal gyrus

A

follow the lateral fissure until it loops up dorsally

39
Q

where is t5he supra marginal gyrus located

A

at the caudal end of the lateral fissure (where it loops up dorsally)

40
Q

where is the angular gyrus located

A

at the caudal end of the superior temporal sulcus

41
Q

what are the 3 major temporal gyri

A

superior middle inferior

42
Q

which orientation are the temporal gyrus in

A

rostrocaudal

43
Q

what delimits the occipital lobe on the lateral aspect

A

line between parietooccipital sulcus and pre occipital notch

44
Q

true or false, there is not division of gyri in the occipital bone

A

false, there is less distinction that others but there is still superior middle and inferior occipital gyrus

45
Q

true or false: there are only 3 temporal gyri

A

FALSE

46
Q

what sulci and gyri can you find within the lateral fissure

A

transverse temporal gyri and insula

47
Q

what is the transverse temporal gyri important for

A

auditory cortex

48
Q

the transverse temporal gyri are part of the BLANK

A

temporal operculum
(lower inflation lip of the lateral fissure)

49
Q

where is the insula lobe located

A

deep within the lateral fissure

50
Q

what cortex is important in the insular lobe

A

primary gustatory (taste) cortex
(along with the ventral aspect of post central gyrus)

51
Q

true or false: limbic lobe is ALWAYS a true lobe

A

false, depends on the source

52
Q

limbic lobe involves which other lobes of the brain

A

frontal, parietal and temporal lobe

53
Q

what are some functions of the limbic lobe

A

emotions
memory
reward
motivation
maintaining homrostatis

54
Q

what is the gyri that surrounds the limbic cortex

A

cingulate gyrus,
then parahippocampal gyrus

55
Q

what sulcus surrounds the cingular gyrus

A

cingulate sulcus

56
Q

what does the cingulate sulcus become as it moves dorsally

A

marginal sulcus

57
Q

what delimits the parietal and occipital lobe medially

A

parietooccipital sulcus

58
Q

calcarine sulcus is located in what love

A

occipital

59
Q

what sulcus does the calcarine sulcus extend from

A

pareitooccipital sulcus and extends caudallyca

60
Q

does the calcarine sulcus extend caudally or rostrally from the parietooccipital sulcus

A

caudally

61
Q

what does the calcarine sulcus seperate

A

lingual gyrus (inf)
cuneus (sup)

62
Q

is the lingual gyrus inferior or superior to calcarine sulcuis

A

inf

63
Q

which two gyri combine4 to form the hippocampal gyrus

A

lingual gyrus
cingulate gyrus

64
Q

the cingulate sulcus is continuous with what sulcus as it courses dorsally

A

marginal

65
Q

what lobe is the precuneus in

A

parietal

66
Q

is the precuneus located rostral or caudal to the parietooccipital sulcus

A

rostral

67
Q

is the paracentral lobule located rostral or caudal to the marginal sulcus

A

rostral

68
Q

in what lobe is the gyrus rectus

A

frontali

69
Q

in what lobe is the subcollasal gyrus

A

frontal

70
Q

true ro false: cuneus is rostral to precuneous

A

false, it is caudal to

71
Q

what are the gyri of the temporal lobe in the medial view

A

occipitotemporal gyrus (fusiform)
parrahippocampal gyris

72
Q

in what lobe is the parrahippocampal gyrus located

A

temporal

73
Q

what is the rostral extremity of the parahippocampal gyrus located

A

rostral extremity

74
Q

what sulcus separates the occipitotemporal gyrus from the parahipposcrampal gyrus

A

medial occipitotemporal sulcus (collateral)

75
Q

which gyrus is located under the corpus callosum

A

subcallosal gyrus

76
Q

where is the primary somatosensory cortex located

A

post central gyrus in the parietal lobe

77
Q

where is the primary motor cortex located

A

pre central gyrus in the frontal lobe

78
Q

where is primary visual cortex

A

surrounding and within calcarine fissure (occipital lobe)

79
Q

where is the primary olfactory cortex

A

piriform cortex (near the uncus)
=temporal lobe

80
Q

where is the primary gustatory cortex

A

anterior insula and frontal operculum

81
Q

where is the primary auditory cortex located

A

superior and transverse temporal gyri (temporal lobe)

82
Q

a patient has a lesion in the post central gyrus in the left brain, what will be affected

A

somatosensory deficits in the right upper limb

83
Q

which part of the inferior frontal gyrus is most caudal

A

pars opercularis

323 - anatomy (18 decks)

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