T17 cerebral cortex

subcortical structures - examples

subcortical white matter, basal ganglia, amygdala

which cerebral layer is best for receiving signals

layer 4

corpus callosum - what kind of fiber

commissural

internal capsule - what kind of fiber

projection

association fibers - function

connect cortical regions within one hemisphere

short association fibers - connect what

adjacent gyrus

long association fibers - connect what

lobes within single hemisphere

cingulum - function

connect frontal, parietal, temporal lobe

inferior longitudinal fasciculus - function

connect temporal & occipital

uncinate fasciculus - function

connect frontal & temporal

superior longitudinal fasciculus - function

connect frontal, parietal, occipital

arcuate fasciculus - function

connect frontal & temporal

commissural fiber - function

connect homologous areas of two hemispheres

projection fibers - function

connect the cerebral cortex with subcortical structures and the spinal cord

1st somatosensory cortex - BA

3,1,2

2nd somatosensory (assocation) cortex - BA

5,7

1st auditory cortex - BA

41,42

2nd auditory (association) cortex - BA

22

supplementary motor cortex - BA

6

supplementary motor cortex - function

motor planning

premotor area - BA

6

premotor area - function

postural organizing to perform skilled movement

dorsolateral prefrontal association - function

goal-oriented behavior, self awareness

parietotemporal association - function

sensory integration

ventral & medial dorsal prefrontal association - function

emotion, motivation, personality

somatosensory association cortex - BA

5

visual association cortex - BA

18,19

multimodal association cortex - examples

limbic associaton cortex

what fiber connect wernicke & brocha area

arcuate fasciculus

expressive aphasia - sign

slow and prolonged output of words (nonfluent)

receptive aphasia - sign

fluent in speaking, but words have no meaning

anomic aphasia - sign

know word but word not getting out of mouth

global aphasia - sign

can’t speak, understand speech, read, or write

which type of aphasia is most severe

global aphasia

conduction aphasia - sign

can’t repeat words or phrases

apraxia - what

movement problem

ideomotor apraxia - what

patient knows what movement to make but cannot do it correctly on command

ideational apraxia - what

patient unable to sequence series or actions

left or right hemisphere which one is dominant

left hemisphere

lesion at non-dominant side - signs

patient can’t interpret what’s going on at left side

lesion at dominant side - signs

only language and speech is gone

lesion at dominant or non-dominant side, which one more severe

non-dominant lesion

agnosia - what

person can't recognize something even though senses are working fine