PSYC 2560 Lecture Notes - Lecture 9: Intracerebral Hemorrhage, Temporal Lobe Epilepsy, Brain Ischemia
1 Apr 2016
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Document Summary
Metastic: originating elsewhere, moving to the brain. Stroke: sudden onset cerebrovascular event resulting in brain damage. When blood comes into contact with neural tissue, it can cause cell death. Aneurysm: cerebral haemorrhage where a weakened point in blood vessel ruptures. Cerebral ischemia: blockage, preventing blood from reaching brain. Thrombosis: plug forms in vasculature (fats from diet) Embolism: plug forms elsewhere and moves to the brain. Arteriorsclerosis: wall of blood vessels thicken, usually due to fat deposits. Narrow window of time in which you can intervene and prevent damage. When deprived of blood, neurons become hyperactive, firing rapidly, releasing glutamate (neurotoxicity) Medial temporal lobes specifically susceptible to cerebral ischemia. Occurs when brain comes into contact with the skull by acceleration, deceleration, angular motion. Motor vehicle accident where individual hits a telephone pole. Coup injuries: injuries on same side of brain as blow. Contrecoup injuries: contusions are often on side of brain opposite to blow. Contusion: bruise on brain, causing mild dysfunction.
