Exercise 5: Cardiovascular Dynamics: Activity 7: Compensation in Pathological Cardiovascular Conditions Lab Report
Pre-lab Quiz Results
You scored 100% by answering 4 out of 4 questions correctly.
1. Which of the following could cause an increase in peripheral resistance in the blood vessel?
You correctly answered: b. atherosclerosis
2. Which structures in the heart ensure that one-way flow occurs?
You correctly answered: d. valves
3. Which of the following might be seen in both the diseased heart and the athlete's heart?
You correctly answered: c. thicker myocardium
4. The type of resistance increased in aortic valve stenosis is
You correctly answered: d. increased left-ventricular afterload.
Post-lab Quiz Results
You scored 75% by answering 3 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?
Your answer: c. adjust viscosity
Correct answer: b. adjust the force of contraction of the heart
3. Without a difference in pressure between the pump and the destination beaker
You correctly answered: a. the valve will not open.
4. Athletes experience an overall __________ in peripheral resistance, so the heart generates __________ pressure to
deliver 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
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