Bio 202 Unit 2 Chapter 19 Practice Quiz 2

Bio 202 Unit 2 Chapter 19 Practice Quiz 2 - Chapter 18...

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Chapter 18 Practice Quiz 2 1. Heart valves function to A. pump the blood B. prevent clots from entering the heart C. direct the blood flow through the heart D. measure the blood pressure 2. The right and left atrioventricluar valves open when the A. atria contract B. papillary muscles contract C. atria relax D. ventricles contract 3. During atrial systole, the upper chambers contract and open the AV valves so that blood can be pumped into the A. ventricles B. veins C. atria D. arteries 4. Blood flows past the aortic semilunar valve when the contracts. A. left atrium B. right atrium C. left ventricle D. right ventricle 5. Which is true? A. The left atrium contracts before the right atrium. B. The right atrium contracts before the left atrium. C. The left ventricle contracts before the right ventricle. D. The right ventricle contracts before the left ventricle. E. Both ventricles contract at the same time. F. Both atria contract at the same time. G. all four chambers contract at the same time. 6. Which statement is false? A. Contraction of the right side of the heart precedes the left. B. Atrial contraction precedes ventricular contraction.
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Bio 202 Unit 2 Chapter 19 Practice Quiz 2 - Chapter 18...

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