4-Cerebral Cortex

Question 1

allocortex

Answer 1

1. archicortex with hippocampus
   -3 layer arrangement
2. paleocortex
3. mesocortex with insula

limbic is paleo + meso

Question 2

neocortex

Answer 2

everything else that’s not allo
1. homotypical - association areas
2. heterotypical- agranular and granular

Question 3

agranular cortex

Answer 3

primary motor cortex

Question 4

granular cortex

Answer 4

primary sensory cortex

Question 5

cell types in gray matter

Answer 5

1. pyramidal- majority of cells in neo
2. fusiform- thalamic tracts
3. interneurons- martinotti, granule, stellate, retzius cajal, basket

Question 6

white matter fibers

Answer 6

1. association- within same hemi, ipsilat
2. commissural- to/from oppo sides, contra
3. projection fibers- to/from cortex or spinal cord

Question 7

projection fiber examples

Answer 7

corticostraite/spinal/bulbar
internal capsule- genu + ant/post limbs
thalamocortical

Question 8

layers of neocortex

Answer 8

1. molecular - integrate info
2. external granular - integrate info
3. external pyramidal - comissure/association fibers
4. internal granular- major input layer
5. internal pyramidal- projection fibers
6. multiform- output

Question 9

frontal lobe cortical areas

Answer 9

4- along precentral gyrus

44 + 45 = brocas for motor contol of speech

Question 10

parietal lobe cortical areas

Answer 10

3 + 1 + 2
along post central gyrus

Question 11

occipital lobe cortical areas

Answer 11

17

Question 12

temporal lobe cortical areas

Answer 12

41 (conscious perception of sounds, primary auditory cortex) + 22 (wernickes area for comprehension of speech)

Question 13

aphasia

Answer 13

brocas + wernickes lang deficits

Question 14

apraxia

Answer 14

impair in perform of learned moves without paralysis

Question 15

agnosia

Answer 15

deficits in tactile, visual, auditory, neglect/cortical syndrome