BIOL122 Lecture Notes - Lecture 13: Subarachnoid Hemorrhage, Stroke, Hypertension
Document Summary
Definition of stroke: a stroke occurs when the blood supply to part of your brain is interrupted or severely reduced, depriving brain tissue of oxygen and nutrients. Risk factors for stroke: high blood pressure, cigarette smoking, diabetes, high blood cholesterol levels, heavy drinking, a diet high in fat (particularly saturated) and salt, but low in fibre, fruit and vegetables, lack of regular exercise, obesity. Inflammatory response: significance of the inflammatory response accompanying necrotic brain injury: acutely, this response appears to contribute to ischemic pathology, and anti- inflammatory strategies have become popular. Consequences of stroke: weakness or paralysis on the left side of your body, vision problems, problems distinguishing distance, depth, between up and down, or between front and back, problems understanding maps, problems with short-term memory. Important in sleep, feeding, appetite and regulation of moods. Definition of dementia: dementia is a progressive decline in memory and at least on other cognitive area (ie attention, orientation, judgement, abstract thinking, personality)
