Flashcards in Lots of Neuro Goodies Deck (41)
What is the triad of Kluver-Bucy syndrome? What lesion? Infection?
- disinhibited behavior
--> bilateral amygdala lesion
--> HSV-1 infection
What is the triad of Wernicke-Korsakoff syndrome? What causes this syndrome? What organ is affected?
Wernicke problems come in a CAN of beer:
- caused by thiamine (B1) deficiency and EtOH
- C: confusion
- A: ataxia
- N: nystagmus
- Mammilary bodies affected bilaterally
What lesion leads to hemiballismus? Ipsi- or contra- laterally?
Hemiballismus: STN, contralateral
What structures does PICA supply?
1. vestibular nuclei
2. lateral spinothalamic tract
3. spinal trigeminal nucleus
4. nuclus ambiguus
5. sympathetic fibers
6. inferior cerebellar peduncle
When the partial pressure of oxygen falls below ___, cerebral perfusion pressure increases. (normal PO2 = ___).
When the partial pressure of oxygen falls below 50 mmHg, cerebral perfusion pressure increases. (normal PO2 = 100 mm Hg).
Where is Broca's area?
Intferior frontal gyrus of frontal lobe
Where is Wernicke's area?
superior temporal gyrus of temporal lobe
Which hematoma cannot cross the falx or tentorium?
Which structures does the lenticulostriate artery supply? Symptoms of stroke here?
striatum, internal capsule; contralateral hemiparesis/hemiplegia
Why might you hyperventilate a patient with acute cerebral edema?
decrease PCO2 --> vasoconstriction --> decreased cerebral perfusion --> decreased intracranial pressure