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QUIZ6Eans - into the heart is called a preload b afterload...

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APPROVED SOLUTION Name _________________________ CH387 Human Physiology 6 March 2007 Quiz #6 E 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, ________. 6. Which of the following decreases heart rate? 7. The pressure in the large systemic veins leading into the heart is called ____________.
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Unformatted text preview: 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) What causes your foot to “fall asleep?” Nerve pathways can become blocked, preventing normal transmission of electrochemical impulses to the brain. Some of the nerves, starved or pinched or both, stop firing while others fire hyperactively. This leads to mixed signals being sent to the brain, where they are interpreted as burning, prickling or tingling feelings. It is these sensations, known medically as paresthesia, that alert you to move your foot....
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