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BIO 142 Quiz II Northern Virginia Community College, Annandale Campus Total score is out of 25. Name: 1) What is the definition of cardiac cycle?

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BIO 142 Quiz II Northern Virginia Community College, Annandale Campus Total score is out of 25. Name: 1) What is the definition of cardiac cycle? Briefly explain different stages of this cycle. (focus on opening and closing of the valves and also contraction and relaxation of chambers) (6 points 2) What is the EKG? Explain each of the following waves and intervals: P wave, P-R interval, QRS wave, S-T segment, QT interval and T wave? (6 points) 3) Explain cardiac output and two factors affect on it. (3 points)
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BIO 142 Quiz II 4) Explain stroke volume and three factors control and affect on it. (4 points) 5) Explain these terms: pulmonary ventilation, external respiration, and internal respiration? (3 points) 6) How do temperature, H+, and BPG affect the affinity of Hb for O 2 ? (3 points) Good Luck
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