HSM 330 Chapter Notes - Chapter 6: Peripheral Artery Disease, Coronary Circulation, Pulmonary Artery
2 Apr 2013
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Sends supplies such as fluids, nutrients, hormones, oxygen and antibodies. Removes waste products such as carbon dioxide and hydrogen ions. Composed of heart, blood vessels (arteries, arterioles, capillaries, veins and venules) and blood. Arteries carry blood away from heart and veins carry blood to the heart. Age related changes: enlargement of heart mass, duce to increase in size of muscle cells and myocytes, slowing of electrical activity of heart, 10% of pacemaker cells that are found in younger people remain. Optimal blood pressure for adults over 18 = 120/80 or lower. Systolic hypertension: high reading in systolic pressure, increases in life, whereas elevation in diastolic pressure tends to level off in later life. Caused by : changed in kidney function, obesity, hormonal changes, increased sensitivity to na, genetic propensities, arterioscelrosis and atherosclerosis. Managing = weight control, decrease in na intake, diuretics (side effects: low bp, confusion, impotence and depression)
