Cerebral cortex & Limbic system Flashcards
What layer is the largest in the sensory cortex ?
Internal granular layer IX
What layer is the largest in the motor cortex?
internal pyramidal layer V
What does the middle cerebral a. supply?
- lateral surface of frontal & parietal
- upper temporal
- genu and posterior limb of internal capsule
- parts of basal ganglia
What does the anterior cerebral a. supply?
- Medial surfaces of frontal & parietal
- Anterior 4/5ths of corpus
- Anterior limb of internal capsule
What does the posterior cerebral a. supply?
- Occipital lobe
- lower temporal lobe
- Parts of thalamus
- midbrain
- splenium of corpus callous
What does 44 & 45 functional cortex area deficit cause
Broca aphasia
What does functional area of 22 give rise to ?
Language interpretation
What does functional area of 39 give rise to ?
Written language interpretation
Broca apashia
motor
nonfluent speech
ability to comprehend
Wernicke apathie
sensory
fluent speech
not ability to comprehend
What is the deficit in conduction aphasia?
arcuate fasciulus
Arcuate fasciulus presents with …
inability to name objects
fluent speech
comprehension intact
Gerstmann Syndrome
defect in 39 -brodmann
inability to read & write
inability to distinguish one own fingers
Hemineglect syndrome
defect in 39 & 40 on the right side
Disconnect syndromes
transcortical apraxia- Left to right disconnect
alexia without agraphia -right visual cortex is disconnected from left language centre
