PSYB65H3 Lecture Notes - Lecture 1: Meninges, Absence Seizure, Blood Vessel
5 Jan 2015
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Document Summary
Ischemia: loss of blood supply to the brain that typically results in infarct. Thrombosis: accum. of artersclero. plaque in different areas; over time will shut down like. Traffic jam long term permanent cerebral damage (without treatment) Embolism: art. plaques throughout brain; in larger vessel becomes dislodged - eventually hits a traffic jam b/c arteries get smaller and smaller towards target tissue; permanent damage if not treated. : genetic disposit. /diet/activity - accumulation over time that can lead to stroke. Transient: abnorm. dilat. and constriction of bv; migraine can disrupt blood flow and effect neurons. Creating pressure of system - more likely to sustain trauma; risk factor for sustaining hemorrhage. *avm (congenital, toxins, etc) - people will grow abnormal vasculature in diff. parts of body. In itself not a problem but risk factor for other conditions e. g. aneurism, angioma risk factor for sustaining aneurysm. Drug therapy - blood thinners e. g. aspirin, anticollagulants etc.
