PSYB65H3 Lecture : PSYB65 LECTURE 3

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Textbook on exam; no dates on the exam; do not ask questions from a table; know really big names. Blood carries oxygen and sucrose to keep cells alive: brain has high metabolic rate/requirement. Types: blockage of blood flow, cerebral vascular accident: (cva) commonly referred to stroke (loose term) Blow to head which causes injury to head but does not open up brain itself; caused by automobile accidents, sport injuries, trauma to head; damage to front portion of frontal lobe and temporal lobe. Contracoup (countercoup) effects: slamming one side of the head usually damage to other side. Caused by cancer: mass of growing tissue which is growing independent of surrounding tissue. Major types: glioma: caused by cancer of glilal cells. 45% of all brain tumors, arrange from benign (non-envasive) to highly malign (spread/divide: meningioma: caused by tumour in meninges. Viral infections that infect brain/nervous system, polio, rabies, herpes, meningitis, Bacterial infections/ meningitis stopped if found early.

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