How does the heart provide for an increase in stroke volume?
Experiment Data:
Flow
(ml/min)
Rad. L
(mm)
Rad. R
(mm)
Str. V (ml)
Rate
(strokes/min)
Press. L
(mm Hg)
Press. Dif. R
(mm Hg)
5086.8
3.0
3.0
10
508.7
40
40
5086.8
3.0
3.0
20
254.3
40
40
5086.8
3.0
3.0
30
169.6
40
40
5086.8
3.0
3.0
40
127.2
40
40
5086.8
3.0
3.0
50
101.7
40
40
5086.8
3.0
3.0
60
84.8
40
40
5086.8
3.0
3.0
80
63.6
40
40
5086.8
3.0
3.0
100
50.8
40
40
010/02/15
page 3
Post-lab Quiz Results
You scored 100% by answering 4 out of 4 questions correctly.
1. What do you think would happen when stroke volume is decreased?
2. Why might an athlete's resting heart rate be lower than that of the average person?
3. In this activity, which of the following stayed constant?
4. Which of the following is true?
010/02/15
page 4
Review Sheet Results
1. Describe the Frank-Starling law in the heart.
2. Explain what happened to the pump rate when you increased the stroke volume? Why do you think this occurred? Howwell did the results compare with your prediction?
3. Describe how the heart alters stroke volume.
4. Describe the intrinsic factors that control stroke volume.
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?
2. Which structures in the heart ensure that one-way flow occurs?
3. Which of the following might be seen in both the diseased heart and the athlete's heart?
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- Fall '15
- heart rate, Review Sheet Results, Pre-lab Quiz Results
