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Neuroanatomy and neurophysiology > Cerebrum anatomy > Flashcards

Cerebrum anatomy Flashcards

1
Q

Folds of the cerebrum

A

Gyrus (pl. gyri)

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2
Q

Grooves of the cerebrum

A

Sulcus (pl. sulci)

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3
Q

Large deep sulcus

A

Fissure

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4
Q

Which groove divides the cerebrum into the right and left hemispheres?

A

Median longitudinal fissure

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5
Q

Groove that separates the frontal and parietal lobes

A

Central sulcus (fissure of Rolando)

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6
Q

Groove that separates the parieto-frontal and temporal lobes

A

Sylvian fissure (lateral fissure)

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7
Q

Groove that separates the occipital and parietal lobes

A

Parieto-occipital sulcus

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8
Q

Groove between superior frontal gyrus and middle frontal gyrus

A

Superior frontal sulcus

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9
Q

Groove between middle frontal gyrus and inferior frontal gyrus

A

Inferior frontal sulcus

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10
Q

Borders of the precentral gyrus

A

Central sulcus, posteriorly

Precentral sulcus, anteriorly

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11
Q

Fold immediately posterior the central sulcus

A

Post-central gyrus

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12
Q

Folds separated by the central sulcus

A

Precentral gyrus and post-central gyrus

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13
Q

Folds separated by inferior frontal sulcus

A

Middle frontal gyrus and inferior frontal gyrus

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14
Q

Folds separated by superior frontal sulcus

A

Superior frontal gyrus and inferior frontal gyrus

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15
Q

Borders of the post-central gyrus

A

Central sulcus, anteriorly

Post-central sulcus, posteriorly

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16
Q

Groove that separates superior and inferior parietal lobule

A

Intraparietal sulcus

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17
Q

Parts of the inferior parietal lobule

A

Angular gyrus, supramarginal gyrus

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18
Q

Folds separated by the intraparietal sulcus

A

Superior parietal lobule, inferior parietal lobule

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19
Q

Areas separated by central sulcus

A

Frontal and parietal lobes

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20
Q

Areas separated by medial longitudinal fissure

A

Right and left hemispheres

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21
Q

Areas separated by Sylvian fissure

A

Fronto-parietal lobe, and temporal lobe

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22
Q

Areas separated by parieto-occipital sulcus

A

Parietal and occipital lobes

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23
Q

The parts of inferior frontal gyrus

A

Pars orbicularis, pars triangularis, pars opercularis

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24
Q

Which part of the inferior frontal gyrus is anteriormost?

A

Pars orbicularis

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25
Q

Which part of the inferior frontal gyrus is posteriormost

A

Pars opercularis

26
Q

Which part of the inferior frontal gyrus is in the middle of the other two?

A

Pars triangularis

27
Q

How do you differentiate angular gyrus and supramarginal gyrus?

A

Angular gyrus caps the superior temporal sulcus

Supramarginal gyrus caps the Sylvian fissure

28
Q

The point where the three parts of inferior frontal gyrus meet

A

Anterior Sylvian point

29
Q

Folds separated by superior temporal sulcus

A

Superior temporal gyrus and middle temporal gyrus

30
Q

Folds separated by inferior temporal sulcus

A

Middle temporal gyrus and inferior temporal gyrus

31
Q

Fold that caps the lateral fissure

A

Supramarginal gyrus

32
Q

Fold that caps the superior temporal sulcus

A

Angular gyrus

33
Q

Groove that separates superior temporal and middle temporal gyri

A

Superior temporal sulcus

34
Q

Groove that separates middle temporal and inferior temporal gyri

A

Inferior temporal sulcus

35
Q

Folds separated by the olfactory sulcus

A

Straight gyrus, orbital gyrus

36
Q

Which statement is false regarding the sulcus of Rolando?

A. It separates the frontal lobe from the parietal lobe
B. It separates the frontal lobe from the temporal lobe
C. It is the posterior boundary of the precentral gyrus
D. It disappears into the paracentral lobule.

A

B

37
Q

Which statement is TRUE regarding the lateral fissure of Sylvius?

A. Its anterior Sylvian point lies immediately beneath the pars orbicualris
B. Its lateral end is capped by the angular gyrus
C. Its surrounding cerebral cortex is called the operculum
D. The terminal segment of the ICA runs throughout its length

A

C

38
Q

Which is NOT found exclusively within the frontal lobe?

A. Straight gyrus
B. Orbital gyrus
C. Cingulate gyrus
D. Pars opercularis

A

C

39
Q

The superior parietal lobule is separated from the supramarginal gyrus by the

A. Sylvian fissure
B. Central sulcus
C. Intraparietal sulcus
D. Parietooccipital sulcus

A

C

40
Q

The occipitotemporal gyrus is divided into lateral and medial portions by the

A. occipitotemporal sulcus
B. Collateral sulcus
C. Calcarine fissure
D. Inferior temporal sulcus

A

B

41
Q

Which statement is TRUE regarding the precuneus?

A. It is located within the parietal lobule
B. The calcarine fissure forms its anterior border
C. The parieto-occipital sulcus forms its inferior border
D. It is located within the occipital lobe

A

A

42
Q

The paracentral lobule is actually the continuation of the

A. superior frontal gyrus
B. Superior parietal lobule
C. Superior temporal gyrus
D. Cuneus

A

A

43
Q

Which statement is FALSE regarding the uncus?

A. Tumors within it may push and compress the midbrain against the tentorial notch
B. The uncinate fasciculus lies directly beneath it
C. It is part of the temporal lobe
D. It lies adjacent to the interpeduncular cistern of the midbrain

A

A

44
Q

Which pair of structures do NOT match?

A. Amydala: frontal lobe
B. Putamen: insula
C. Hippocampus: temporal lobe
D. Splenium of the corpus callosum: parietal lobe

A

A

45
Q

Gray matter found underneath the Sylvian fissure

A

Insula

46
Q

The largest commisure of the brain

A

Corpus callosum

47
Q

Three groups of white matter in the cerebral hemispheres

A

Commissural fibers, association fibers, projection fibers

48
Q

The commissural fibers connect which parts of the brain?

A

Right and left hemispheres

49
Q

The thin part of the anterior end of the corpus callosum, prolonged posteriorly to be continuous with the upper end of the lamina terminalis

A

Rostrum

50
Q

The curved anterior end of the corpus callosum, bends inferiorly in front of the septum pellucidum

A

Genu

51
Q

The thickened posterior portion of the corpus callosum

A

Splenium

52
Q

The commissural fibers of the brain

A

Corpus callosum, anterior commissure, posterior commissure, habenular commissure, fornix

53
Q

What is an example of commissural fiber

A. Corticospinal tract
B. Corpus callosum
C. Cingulum
D. Fronix

A

B

54
Q

Which statement is FALSE regarding the white matter tracts of the cerebrum?

A. The corona radiate are projection fibers
B. The corpus callosum is a commissural set of fibers
C. The posterior commissure connects both
inferior and middle temporal gyri
D. The superior longitudinal fasciculus is the largest
bundle of association fibrs.

A

C

55
Q

Example(s) of commisural fibers

a. internal capsule
b. arcuate fasciculus
c. long association fibers
d. corona radiata
e. none of the above

A

E

56
Q

The lowest and most medial portion of the temporal lobe

a. tonsil
b. flocculo-nodular lobe
c. uvula
d. none of the above

A

d

57
Q

Which part of the brain does the fornix connect?

A

Hippocampus

58
Q

Brodmann areas were defined using this approach in the study of the nervous system

a. Comparative approach
b. Developmental approach
c. cytoarchitectonic approach
d. Biochemical approach
e. All of the above

A

C

59
Q

Subcortical neurons except:

a. dorsal root ganglia
b. ansa lenticularis
c. thalamus
d. caudate
e. a and b

A

A

60
Q

Location of the leg fibers of the corticospinal tract

a. There is no topographical arrangement of leg and arm fibers in the spinal cord
b. medial part of the anterior limb of the internal capsule
c. lateral part of the cerebral peduncle
d. all of the above

A

C

Neuroanatomy and neurophysiology (16 decks)

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