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Common brain lesions
Neuro
11
Medical
Graduate
04/04/2013

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Cards

Term
Amygdala (bilateral)
Definition
Kluver-Bucy syndrome - hyperorality, hypersexuality, disinhibited behavior
assocaited with HSV-1
Term
Frontal lobe
Definition
disinhibition, deficits in concentration, orientation and judgement
may have reemergence of primitive reflexes
Term
Right parietal lobe
Definition
spatial neglect syndrome (agnosia of the contralateral side of the world)
Term
Reticular activating system (midbrain)
Definition
reduced levels of arousal and wkefulness
Term
Mamillary bodies (bilateral)
Definition
Wernicke-Korsakoff syndrome - confusion, opthalmoplegia, ataxia; memory loss (anterograde and retrograde amnesia), confabulation, personality changes
associated with B1 deficiency an excessive EtOH use; can be precipitated by giving glucose without B1 to a B1-deficient patient
Term
Basal ganglia
Definition
tremor at rest, chorea, athetosis
Parkinson's disease
Term
Cerebellar hemisphere
Definition
intention tremor, limb ataxia, loss of balance
damage results in ipsilateral deficits - fall toward side of lesion
Term
Subthalamic nucleus
Definition
contralateral hemiballismmus
Term
Hippocampus
Definition
anterograde amnesia - inability to make new memories
Term
Paramedian pontine reticular formation (PPRF)
Definition
eyes look away from side of lesion
Term
Frontal eye fields
Definition
eyes look toward lesion
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