QUIZ6CDans - b parasympathetic nervous system activity c...

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APPROVED SOLUTION Name _________________________ CH387 Human Physiology 6 March 2007 Quiz #6 C/D Hours – (30 points) MATCHING: Choose ALL correct answers (3 points each) 1. __B/D__ all valves are closed 2. ___C___ ventricular volume decreases 3. ___A___ atria fill with blood A. Ventricular filling B. Isovolumetric contraction C. Ventricular ejection D. Isovolumetric relaxation Multiple Choice (3 points each) 4. Which of the following components of the ECG represents ventricular depolarization? a. P wave b. QRS complex c. T wave 5. During ventricular ejection, ________. a. the AV valves are open b. the semilunar valves are open c. left ventricular pressure > aortic pressure d. both B and C e. all of the above 6. Which of the following decreases heart rate? a. sympathetic nervous system activity
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Unformatted text preview: b. parasympathetic nervous system activity c. epinephrine d. glucagon e. all of the above are true 7. The pressure in the large systemic veins leading into the heart is called ____________. a. preload b. afterload c. peripheral venous d. systemic venous pressure e. central venous pressure 8. Arteries have __ compliance and __ resistance. a. low : low b. high : high c. low : high d. high : low 9. In the circulatory system, the largest pressure drop occurs across _____________. a. arteries b. arterioles c. capillaries d. venules EXTRA CREDIT (3 points) Veins function as ________ reservoirs due to their _________ compliance. a. pressure : high b. volume : high c. pressure : low d. volume : low e. pressure : lack of...
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