Geography Question Paper 2005

Jun 28th, 2015
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Alvin Community College
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1. Attempt seven questions in all. 2. Part I is compulsory. All questions from Part I are to be attempted. 3. A total of five questions are to be attempted from Part II: three questions from Section 1 and two questions from Section 2.

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CVA/ Brain Attackis a condition in which a neurologic deficits results form a sudden decrease in blood flow to a localized area of the brain Risk Factors:1. Hypertension is the greatest risk factor for stroke. At least 4x to 6 x risk.Increase systolic and diastolic blood pressure is associated with damage to all blood vessels, including the cerebral vessel.2. Heart DiseaseAtrial fibrillation is the second greatest risk factor for strokeOther heart disease that increases the risk for stroke are mitral valve stenosis, patent foramen ovale, and cardiac surgery.3. Diabetes Mellitusleads the vascular changes in both the systemic and cerebral circulation and increases the risk of hypertension. People with diabetes are three times more likely to have a stroke.4. Sleep ApneaConsidered the major risk for stroke, sleep apnea increases blood pressure and causes decreased oxygen and increase carbon dioxide in the blood5. Blood Cholesterol LevelIncreased blood cholesterol levels contribute to the risk of atherosclerosis, including arteries in the cerebral circulation.6. SmokingCigarette smoking doubles a persons risk for ischemic stroke and increases the risk of cerebral hemorrhageSmoking is directly responsible for more stroke in young adults.7. Substance Abusethe injection of unpurified substances increases the risk for stroke, and abuse of certain drugs can decrease cerebral blood flow and increases the risk for intracranial hemorrhageSubstances associ

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