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Lecture 8

Lecture 8 - Neurological Disorders

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Department
Psychology
Course
PSY290H5
Professor
Ayesha Khan
Semester
Summer

Description
PSY290H5SIntroduction to Physiological Psychology Lecture 8August 12 2013Neurological DisordersOutlineNeurological disorders o Brain damage o Demyelinating diseases o Brain infection o MigraineTreatmentBrain DamageStrokeHead InjuryTumorsSeizures Brain VasculatureOxygen storage within cells of the nervous system is poor o Brain relies on constant blood supplyBrain supplied by rich network of blood vessels StrokeOccurs when blood supply interruptedBy bleeding o Cerebral haemorrhage o CauseHypertension structural atrial defects leukemia toxic chemcialsincrease rickAneurysm ruptureBalloonlike bulge in arterial wallsBy blockageCause o Thrombosis o EmbolismEffect o Ischemiadecrease oxygenAtheroscelerosis age hypertension smoking diabetes high cholesterol obesity drug useincrease oxygen Transient Ischemic Attack TIAResults in death of neural tissueinfarctThrombosis vs Embolism Left picture is normal blood flowRight picture thrombosisa blockage of the arteryThrombosis stays at the sight where it originates whereas embolism breaks away and travels to the brain
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