04/18/17 page 2Post-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. Which of the following compensatory mechanisms was not tested? You correctly answered: c. decreasing the pressure in the left (source) beaker 2. In an actual heart, what is the most logical way to compensate for a decrease in flow tube radius? You correctly answered: b. adjust the force of contraction of the heart 3. Without a difference in pressure between the pump and the destination beakerYou correctly answered: a. the valve will not open. 4. Athletes experience an overall __________ in peripheral resistance, so the heart generates __________ pressure todeliver the same amount of blood. An athlete's arterial pressure would likely be __________ than that in a non athlete. You correctly answered: d. decrease, less, lower 04/18/17 page 3Review Sheet Results 1. Explain how the heart could compensate for changes in peripheral resistance. Your answer: By increasing contractility 2. Which mechanism had the greatest compensatory effect? How well did the results compare with your prediction? Your answer: Decreasing the pressure in the right beaker made biggest result as I predicted 3. Explain what happened when the pump pressure and the beaker pressure were the same. How well did the resultscompare with your prediction? Your answer: I failed with this question by misreading. When there is no pressure gradient, there is no flow 4. Explain whether it would be better to adjust heart rate or blood vessel diameter to achieve blood flow changes at a local level (for example, in just the digestive system). Your answer: Adjusting blood vessel diameter is the best way to change blood flow cause the fourth power of diameter efect blood flow which differs from others 04/18/17 page 4
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