Cerebral Cortex

Question 1

cerebral cortex is embryologically derived from?

Answer 1

telencephalon

Question 2

archicortex: component(s), how many cellular layers

Answer 2

hippocampus and dentate gyrus, 3 layers

Question 3

paleocortex: component(s)

Answer 3

olfactory cortex

Question 4

limbic lobe: components

Answer 4

cingulate gyrus, parahippocampal gyrus, hippocampus

Question 5

sinuses draining cerebral cortex drain into what veins?

Answer 5

internal jugular veins

Question 6

name the 6 cellular layers of neocortex from 1 to 6 (exterior to interior)

Answer 6

molecular, external granular, external pyramidal, internal granular, internal pyramidal, multiform

Question 7

brodmann’s area: primary somatosensory cortex

Answer 7

3, 1, 2

Question 8

brodmann’s area: primary motor cortex

Answer 8

4

Question 9

brodmann’s area: primary visual cortex

Answer 9

17

Question 10

brodmann’s area: primary auditory cortex

Answer 10

41, 42

Question 11

brodmann’s area: Broca’s area

Answer 11

44, 45

Question 12

anatomical name for primary somatosensory cortex

Answer 12

postcenrtal gyrus

Question 13

anatomical name for primary motor cortex

Answer 13

precentral gyrus

Question 14

lesion in the primary motor cortex causes what?

Answer 14

contralateral spastic paralysis

Question 15

visuotopic organization

Answer 15

central visual field is most posterior, peripheral visual field is most anterior

Question 16

lesion in the primary visual cortex causes what?

Answer 16

contralateral hemianopia

Question 17

lesion in upper or lower banks of calcarine fissure causes what?

Answer 17

contralateral inferior or superior quadrantanopia

Question 18

function of Broca’s area

Answer 18

motor aspect of speech

Question 19

brodmann’s area: premotor cortex

Answer 19

6

Question 20

lesion of association areas of parietal lobe on dominant (left) hemisphere causes?

Answer 20

astereognosis, aphasia, alexia, agraphia

Question 21

lesion of association areas of parietal lobe on non-dominant (right) hemisphere causes?

Answer 21

spatial distortion, contralateral neglect

Question 22

function of Wernicke’s area

Answer 22

language comprehension

Question 23

lesion of Wernicke’s area on non-dominant hemisphere causes?

Answer 23

difficulty in comprehending emotional aspect of language

Question 24

lesion to supramarginal gyrus causes?

Answer 24

astereognosis

Question 25

lesion to angular gyrus causes?

Answer 25

alexia and agraphia