Principles of Anatomy and Physiology
15th Edition
ISBN: 9781119329398
Author: Gerard J Tortora, Bryan Derrickson
Publisher: John Wiley & Sons Inc
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Textbook Question
Chapter 20, Problem 22CP
Define cardiac reserve. How does it change with training or with heart failure?
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Chapter 20 Solutions
Principles of Anatomy and Physiology
Ch. 20 - l. Define each of the following external features...Ch. 20 - 2. Describe the structure of the pericardium and...Ch. 20 - 3. What are the characteristic internal features...Ch. 20 - Prob. 4CPCh. 20 - 5. What is the relationship between wall thickness...Ch. 20 - Prob. 6CPCh. 20 - What causes the heart valves to open and to close?...Ch. 20 - In correct sequence, which heart chambers, heart...Ch. 20 - Prob. 9CPCh. 20 - Prob. 10CP
Ch. 20 - 11. In what ways are autorhythmic fibers similar...Ch. 20 - What happens during each of the three phases of an...Ch. 20 - 13. In what ways are ECGs helpful in diagnosing...Ch. 20 - How does each ECG wave, interval, and segment...Ch. 20 - 15. Why must left ventricular pressure be greater...Ch. 20 - Prob. 16CPCh. 20 - During which two periods of the cardiac cycle do...Ch. 20 - Prob. 18CPCh. 20 - Prob. 19CPCh. 20 - Prob. 20CPCh. 20 - Prob. 21CPCh. 20 - Define cardiac reserve. How does it change with...Ch. 20 - Prob. 23CPCh. 20 - 24. What are some of the cardiovascular benefits...Ch. 20 - Prob. 25CPCh. 20 - Prob. 26CPCh. 20 - Why is the cardiovascular system one of the first...Ch. 20 - From which tissue does the heart develop?Ch. 20 - Gerald recently visited the dentist. During the...Ch. 20 - 2. Unathletic Sylvia resolves to begin an exercise...Ch. 20 - 3. Mr. Perkins is a large, 62-year-old man with a...
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- High blood pressure would be a result of ___________ . a high cardiac output and high peripheral resistance a high cardiac output and low peripheral resistance a low cardiac output and high peripheral resistance a low cardiac output and low peripheral resistancearrow_forwardAnna is 18 years old, and her resting heart rate is 70 bpm. What is her target heart rate reserve with an exercise intensity of 70%? a. 173 b. 170 c. 166 d. 162arrow_forwardDefine cardiac output, and explain how it is influenced by both heart rate and stroke volume.arrow_forward
- During heavy exercise, how much cardiac output may increase?arrow_forwardExplain briefly what happens to your heart rate before and after performing an exercise? Why does your heart rate change before and after performing an exercise?arrow_forwardDiscuss the regulation of cardiac output during exercise.arrow_forward
- Integrate the factors that determine stroke volume and heart rate?arrow_forwardDescribe the physiology behind the change in blood pressure and heart rate change after exercisearrow_forwardDescribe the mechanisms that increase the cardiac output during exercise and that increase the rate of blood flow to the heart and skeletal muscles.arrow_forward
- Explain Cardiovascular Changes During Moderate Exercise?arrow_forwardwhat is the general equation for blood flow? how does cardiac output change from rest to exercise and why does cardiac output change? asaparrow_forwardExplain the physiological mechanisms that drive the changes in heart rate between conditions. 1) lying down and sitting up, regular breathing. 2) Between sitting up, regular breathing and immediately after exercise. 3) Between seated inhalation and exhalation. 4) immediately after exercise, and after 60 seconds of recording/recovery.arrow_forward
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