cardiovascular notes

cardiovascular notes - and relate the heart’s electrical...

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Chapter 13: The Cardiovascular System: Cardiac Function As you work through the learning activities and quizzes for this chapter, keep the following learning objectives in mind: Identify the major components of the cardiovascular system, and briefly describe their functions. Identify the major structures of the heart, and describe the path of blood flow through the heart and vasculature. Explain the following events in the cardiac cycle: changes in ventricular, aortic, and atrial pressure; changes in ventricular volume; and heart sounds. Trace the path of action potentials through the conduction system of the heart,
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Unformatted text preview: and relate the heart’s electrical activity to its pumping action. • Describe how the phases of the electrocardiogram relate to the events of the cardiac cycle. • Explain the difference between extrinsic control and intrinsic control, and explain how these terms relate to the regulation of the heart. • Explain how each of the following variables affects cardiac output: sympathetic and parasympathetic nervous activity, circulating epinephrine, afterload, preload, end-diastolic volume, ventricular contractility, and filling time....
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