NURS113 Lecture Notes - Lecture 5: Posterior Communicating Artery, Anterior Cerebral Artery, Posterior Cerebral Artery
27 Jan 2016
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Document Summary
Two internal carotid arteries supply blood anteriorly. At the base of the brain, circle of willis formed by joining: anterior cerebral artery, anterior communication artery, internal carotid artery, posterior cerebral artery, posterior communicating artery. Sudden onset of neurological dysfunction due to an abnormality of cerebral circulation that results in an area of brain infarction. Aka brain attack (infarction = area of cells that die / don"t function properly) 3rd leading cause of death in canada in 2014. Hypertension *** (#1 cause of cva / Stroke: heart diseases, blood diseases, alcohol, cocaine, and illicit drug use, sedentary life style. Ischemic / embolic stoke: due to interruption of blood ow in a cerebral vessel, most common type (70-80% of cva) Hemorrhagic stoke: bleeding into brain tissue or into space surrounding brain, higher mortality / morbidity. From occlusion of cerebral artery secondary to thrombus or embolism. Tuesday, january 26, 2016: cardiac emboli forms in heart, with cardiac dysfunction or dysrhythmias (atrial.
