PAT 20A/B Study Guide - Final Guide: Pia Mater, Embolus, Intraventricular Hemorrhage
10 Mar 2016
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Document Summary
Inadequate blood flow to the brain from partial or complete occlusion of an artery. A transient episode of neurological dysfunction caused by focal brain, spinal cord, or retinal ischemia, but without acute infarction (tissue death) of the brain. Tarotid system: amaurosis fugax (temporary loss of vision in one eye), a transient hemiparesis (weakness of the entire left or right side of the body), numbness or loss of sensation, or a sudden inability to speak. Arthrosclerosis: focal deposit of lipids, primarily within the intimal wall of the artery. Injury to a blood vessel wall and formation of a blood clot. Lacunar stroke: refers to a stroke from occlusion of a small penetrating artery with development of a cavity in the place of the infarcted brain tissue. Embolus lodges in and occludes a cerebral artery, resulting in infarction and edema of the area supplied by the involved vessel.
