Exam 31: Structure and Function of the Cardiovascular and Lymphatic Systems

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As stated in the Frank-Starling law,a direct relationship exists between the _____ of the blood in the heart at the end of diastole and the _____ of contraction during the next systole.

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What is the major effect of a calcium channel blocker such as verapamil on cardiac contractions?

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Which function of the cardiovascular system is often affected by ischemia?

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Continuous increases in left ventricular filing pressures result in which disorder?

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Match the description with the corresponding terms. -Cross-bridge theory

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The right lymphatic duct drains into which structure?

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What causes depolarization of a cardiac muscle cell to occur?

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What is the ratio of coronary capillaries to cardiac muscle cells?

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The resting heart rate in a healthy person is primarily under the control of which nervous system?

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What is the major determinant of the resistance that blood encounters as it flows through the systemic circulation?

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Which event occurs during phase 1 of the normal myocardial cell depolarization and repolarization?

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What is the effect of epinephrine on b₃ receptors on the heart?

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Match the description with the corresponding terms. -Laplace's law

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The cardiac electrical impulse normally begins spontaneously in the sinoatrial (SA)node because it:

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Which chamber of the heart endures the highest pressures?

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Match the description with the corresponding terms. -Bainbridge reflex

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The Bainbridge reflex is thought to be initiated by sensory neurons in which cardiac location?

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Which complex (wave)represents the sum of all ventricular muscle cell depolarizations?

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Which intracardiac pressure is produced because of the descent of the tricuspid valve ring and by the ejection of blood from both ventricles?

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What is an expected change in the cardiovascular system that occurs with aging?

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