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Tuesday, April 30, 2013

Tuesday, April 30, 2013. Describe the difference between the two circuits of the heart . Pulmonary flows between the heart and lungs Systemic flows between the heart and the rest of the body Trace the flow of blood through the heart, starting from the superior and inferior vena cava .

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Tuesday, April 30, 2013

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  1. Tuesday, April 30, 2013 • Describe the difference between the two circuits of the heart. • Pulmonary flows between the heart and lungs • Systemic flows between the heart and the rest of the body • Trace the flow of blood through the heart, starting from the superior and inferior vena cava. • Right atrium  Right AV valve  Right ventricle  pulmonary semilunar valve  Pulmonary trunk  left/right pulmonary arteries  lungs  left/right pulmonary veins  left atrium  left AV valve  left ventricle  aortic semilunar valve  ascending/descending aorta • What are the three layers of the heart? • Epicardium, myocardium, endocardium

  2. Thursday, May 2, 2013 • What layer of the pericardium is closest to the heart? • visceral pericardium • Describe the structure of the mitral valve. What is the purpose of this reinforcement? • Chordae tendineae are attached to papillary muscles. The reinforcement prevents regurgitation of blood into the left atrium. • List, in correct operating order, the structures that compose the conduction system of the heart. • SA node, AV node, AV bundle, bundle branches, Purkinje fibers

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