CH8(1) - Exam Name___________________________________...

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Unformatted text preview: Exam Name___________________________________ MULTIPLE-CHOICE. Choose the one alternative that best completes the statement or answers the question. 1 The effect of epinephri ne on the rate of heart contractio n is: 1) _______ the opposite of the effect of norepinephrine. to increase it. to decrease it. the same as the effect of the parasympathetic nervous system on the rate of heart contraction. none of the above The aorta transports blood to the: 2) _______ right atrium. left atrium. left ventricle. jugular vein. bodys organs. Which of the following layers of the heart wall is made up of cardiac muscle? 3) _______ epicardium myocardium pericardium endocardium epicardium and myocardium Which of the following is true regarding arterioles and arteries? 4) _______ Blood pressure is higher in arterioles than arteries. Arterioles and arteries transport blood from capillaries to veins. Small sphincters regulate the flow of blood from arteries to arterioles. Unlike arterioles, arteries can regulate the amount of blood that passes into capillaries. The wall of an arteriole has less smooth muscle than the wall of an artery . Excess plasma fluid in the tissues is returned to the cardiovas cular system by the: 5) _______ digestive system. arteries. spleen. heart. lymphatic system. 6) Which of the following blood vessels in the diagram of the human cardiovas cular system below contains deoxygen ated blood? Figure 8.1 6) _______ A and C B) D and E C) A only D) C only E) B, D and E Given the following componen ts of the cardiac conductio n cycle, which of the following best describes the movement of the stimulus that causes a heart contractio n? A. atrioventri cular bundle B. sinoatrial node C. atria D. atrioventri cular node E. Purkinje fibers F. ventricles 7) _______ D, A, E, F, B, C A, D, E, B, C, F B, C, D, F, A, E B, C, D, A, E, F Sa node-atria-av node B, D, A, C, E, F 8) Which of the following is not characteri stic of the phase of the cardiac cycle known as ventricula r systole? 8) _______ The atrioventricular valves close. Atria contract, causing blood to fill the ventricles . The blood pressure within the ventricles becomes greater than the blood pressure in the major arteries. The ventricles contract. Blood simultaneously enters the aorta and pulmonary trunk. Which of the following is characteri stic of the parasymp athetic nervous system? 9) _______...
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This note was uploaded on 09/20/2011 for the course MYTH 2001 taught by Professor Online during the Spring '11 term at Temple.

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CH8(1) - Exam Name___________________________________...

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