Neuro 3 Flashcards
(10 cards)
What areas of the brain is damaged in:
- Conduction aphasia?
- Broca’s aphasia?
- Wernike aphasia?
- Global aphasia?
- Inferior parietal lobe and superior temporal regions of the LEFT (language dominant) hemisphere.
- Left posterior inferior frontal gyrus.
- Wernike = Left Superior temporal gyrus
- Global = Large lesion that involved inferior frontal, superior temporal and parietal lobes.
Conduction aphasia is a lesion of what part of the brain that connects the Broca’s area and Wernike’s area?
Arcuate fasciculus
How does Conduction aphasia present?
- Inability to repeat simple phrases
- Relatively normal spontaneous speech, but with possible paraphasic errors or hesitancy.
- Auditory comprehension intact
- Writing may or may not be impaired.
How does broca’s aphasia present?
- Preserved auditory comprehension.
- Production of speech is impaired - difficulty in finding and speaking words
How does Wernike’s aphasia present?
- Auditory comprehension is impaired
- Speech is fluent but with errors, and often meaningless.
Global aphasia presents as?
What artery occlusion classically produces Global aphasia?
- Production of speech is impaired
- Comprehension is impaired.
MCA occlusion where there vessel trifurcates.
correcting hyponatremia too fast can cause what?
Central Pontine myelinolysis, resulting in the clinical transection of the pons and “locked in syndrome.”
Describe presentation of locked in syndrome?
What lesion causes this and what iatrogenic situation can cause this?
paralyzed, unable to speak, and only able to move eyes and blink.
Lesion to PONS, most often due to BASILAR ARTERY STROKE, but also due to central pontine myelinolysis due to too rapid correction of hyponatremia.
What demographic classically suffers from Pseudotumor Cerebra?
Young, obsess African American woman.
What are the 5 main risk factors for developing Pseudotumor Cerebra?
- Head trauma
- Too much vitamin A
- Tetracycline therapy
- OCP
- High dose corticosteroid therapy
