Cortex

Front 1

Which are the I-III layers of the cortex?

Back 1

Layers I-III are supragranular. I is moleculare, II is external granular, III is external pyramidal.

Front 2

What are the supragranular layers concerned with?

Back 2

higher association functions

Front 3

What is layer IV of the cortex?

Back 3

Internal granular layer

Front 4

What fibers does the internal granular layer?

Back 4

thalamocortical fibers

Front 5

Which part of the cortex has a well developed Layer IV?

Back 5

primary sensory

Front 6

What are layers V-VI of the cortex?

Back 6

Infragranular

Front 7

What connections does layer V have?

Back 7

corticostriate, corticospinal, corticopontine, corticobulbar, corticorubral

Front 8

What connection does layer VI have?

Back 8

corticothalamic

Front 9

Where are pyramidal cells found?

Back 9

Layers II, III, IV

Front 10

What are giant pyramidal cells called?

Back 10

Betz

Front 11

What is the parietal lobe involved in?

Back 11

Somatosensory and intergration with visual and auditory

Front 12

What is the temporal lobe involved in?

Back 12

auditory, learning, memory

Front 13

What is the occipital lobe involved in?

Back 13

Visual

Front 14

What is the frontal lobe involved in?

Back 14

initiation and control of voluntary movement, language expressions, mood personality judgement

Front 15

What is the insular cortex involved in?

Back 15

taste

Front 16

What are the major inputs to the primary somatosensory cortex?

Back 16

from VPL and VPM

Front 17

Which layer is the most dense in the primary somatosensory cortex?

Back 17

layer IV

Front 18

Where is the primary somatosensory cortex located?

Back 18

Post-central gyrus of parietal lobe

Front 19

What is BA 40?

Back 19

secondary somatosensory

Front 20

Where is BA 40 located?

Back 20

behind 312, in the upper bank of the lateral sulcus

Front 21

What is BA 40 concenered with?

Back 21

some nociceptive stimuli

Front 22

What Broadman's areas are is the somatosensory association cortex?

Back 22

5,7

Front 23

What are the afferents of the somatosensory assocation cortex?

Back 23

from 312 and 40

Front 24

Where is BA 17 located?

Back 24

Along bank of calcarine sulcus

Front 25

Which layer is prominent in BA 17?

Back 25

layer IV

Front 26

What is it called when the radiations from the lower retina loop over the temporal horn of the lateral ventrical?

Back 26

Meyer's Loop

Front 27

What are the afferents to the primary visual cortex?

Back 27

optic radiations from contralateral field of vision

Front 28

Where does the primary visual cortex project to?

Back 28

tectum and pretectum

Front 29

Which layer is prominent in BA 18 and 19?

Back 29

Large III

Front 30

What projects to BA 18, 19?

Back 30

LGN and pulvinar

Front 31

Where does BA 18,19 project to?

Back 31

superior colliculus

Front 32

What is BA 41?

Back 32

Primary auditory cortex

Front 33

Which layer is prominent in BA 41?

Back 33

Layer IV

Front 34

What are the inputs to BA 41?

Back 34

MGN and contralateral cochlea

Front 35

What is BA 42?

Back 35

Secondary auditory cortex

Front 36

What is BA 4?

Back 36

Primary motor cortex

Front 37

Which layer is prominent in BA 4?

Back 37

Layer V with Betz cells

Front 38

Where does the primary motor cortex project?

Back 38

to Cortico- spinal, bulbar, pontin, striate, thalami

Front 39

What is BA 6?

Back 39

premotor cortex

Front 40

Where does the primary motor cortex receive info?

Back 40

Ventral lateral thalamic

Front 41

Where does the premotor cortex project to?

Back 41

the primary cotex, SC,and BC

Front 42

Where do afferent to the premotor cortex begin?

Back 42

sensory association, ventral lateral nucleus

Front 43

What is the supplementary motor cortex responsible for?

Back 43

coordinating posture and bilateral movement

Front 44

What does the cingulum connect?

Back 44

parahippocampal gyrus, cingulate,medial frontal and parietal

Front 45

What does the inferior occipital fasciculus connect?

Back 45

frontal and occipital lobes

Front 46

What does the uncinate fasciculus connect?

Back 46

orbitofrontal gyrus with temp lobe

Front 47

What does superior occiptofrontal fasciculus connect?

Back 47

Frontal, parietal, occipital

Front 48

What does the superior longitudinal fasciculus connect?

Back 48

frontal, parietal, occipcital, and temporal

Front 49

What are the components of the anterior limb of the internal capsule?

Back 49

anterior thalamic radiations, frontopontine fibers

Front 50

What are the components of the genu of the internal capsule?

Back 50

Corticobulubar fibers

Front 51

What are the components of the posterior limb of the internal capsule?

Back 51

middle thalamic raiation, posterior thalamic radiation, corticospinal, retrolenticular, sublenticular

Front 52

Which layer does the cingulum, inf and sup occipitofrontal fasciculus, superior longitudinal fasciculus, and uncinate fasciculus orginate?

Back 52

Layer II

Front 53

Which layer do the commissures arise from?

Back 53

Layer III

Front 54

What is the function of efferents from the primary visual cortex?

Back 54

visual tracking

Front 55

What happens when the primary visual cortex is lesioned?

Back 55

cortical blindness

Front 56

What happens when the secondary and tertiary cortices are lesioned?

Back 56

inability to recognize familiar objects

Front 57

What is it called when you can't recognize a face?

Back 57

prospagnosia

Front 58

Which eye field is responsible for saccadic eye movements?

Back 58

frontal eye fields

Front 59

What is the dorsolateral prefrontal cortex function?

Back 59

look away task

Front 60

What is blind sight?

Back 60

Even though BA17 is gone, some info gets thru to BA18,19 which allows pt to guess

Front 61

What happens to a pt with bilateral lesions to V4?

Back 61

Achromatopsia