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Stroke

Background

• Duration of symptoms in transient ischemic attack
• Percent of cerebrovascular accident (CVA) that are ischemic vs. hemorrhagic
• Overall most important CVA risk factor
• List four non-modifiable CVA risk factors
• Most important modifiable CVA risk factor
• Most frequent cause of CVA
• Most common cause of ischemic CVA in children

Anatomy

• Components of the Circle of Willis
• What vessels supply blood to the medulla?
• What main branch of the arterial system feeds the anterior portion of brain?
• Homunculus - innervation of body from medial to lateral
• Area of brain supplied by ACA controls what body region’s motor function?
• ACA occlusion presentation
• Describe presentation if both ACA arise from one stem and are occluded
• Area of brain supplied by MCA controls what body regions’ motor function?