Flashcards in Strokes Deck (6):
What does stroke of the middle cerebral artery cause?
-Contralateral paralysis & sensory deficits in head, arm and upper body (upper body homunculus - motor and somatosensory cortex)
-Motor speech deficit = Broca's area
What does stroke of the anterior cerebral artery cause?
Contralateral paralysis & sensory deficits in lower body and extremity (lower body homunculus - motor and somatosensory cortex)
What does stroke of the posterior cerebral artery produce?
Blindness in the contralateral visual field.
What does occlusion of the Posterior Inferior Cerebellar Artery (PICA) cause?
Lateral Medullary Syndrome/Wallenburg Syndrome -Clinical symptoms include swallowing difficulty, or dysphagia, slurred speech, ataxia, facial pain, vertigo, nystagmus, Horner's syndrome, diplopia, and possibly palatal myoclonus.
What are the two main types of stroke?
1. Occlusion of a vessel by a thrombus or embolus --> Ischemia --> Infarction and/or necrosis
2. Hemorrhage from a vessel (often associated with hypertension)
-Intracerebral (perforating vessels)