KP322 Chapter Notes - Chapter 9: Heart Valve, Left Ventricular Hypertrophy, Pulmonary Artery
11 Dec 2017
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Delivers oxygen and removes waste from body tissues transport nutrients aids in temperature regulation. Two adjustments to blood flow can be made to meet increased oxygen demands. Increased cardiac output: redistribution of blood flow from inactive organs to the active skeletal muscles. Capillaries smallest and most numerous blood vessels, where exchange of gases occur. Veins returns blood to the heart venules: mixed venous blood where blood from upper and lower body accumulates. Right side pumps blood through pulmonary circulation left side of the heart delivers blood to the systemic circulation interventricular septum divides. 4 valves: tricuspid right atrioventricular valve, bicuspid left atrioventricular valve, semilunar valve- right ventricle, aortic lunar valve left ventricle. Pulmonary circuit blood from right heart into lung where blood becomes oxygenated. Systemic circuit oxygenated blood out of the left side of heart to the rest of the body. Wall of heart 3 layers: epicardium, myocardium muscular middle layer. Receives blood via right and left coronary arteries.
