Human Physiology: An Integrated Approach (8th Edition)
8th Edition
ISBN: 9780134605197
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Chapter 14, Problem 27RQ
Summary Introduction
To calculate: End-systolic volume if the value of the end-diastolic volume is 150 mL and stroke volume is 65 mL/beat.
Introduction: Cardiac output is defined as the the amount of blood that is pumped by the heart within one minute through the circulatory system. The normal range of cardiac output is 4700 mL/min.
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If end-diastolic volume (EDV) is 200 ml, and end-systolic volume (ESV) is 50 ml, calculate stroke volume (SV) and ejection fraction (EF)
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A
160 ml
B
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4800 ml
Chapter 14 Solutions
Human Physiology: An Integrated Approach (8th Edition)
Ch. 14.1 - A cardiovascular system has what three major...Ch. 14.1 - What is the difference between (a) the pulmonary...Ch. 14.2 - Which is more important for determining flow...Ch. 14.2 - The two identical tubes below have the pressures...Ch. 14.2 - All four tubes below have the same driving...Ch. 14.2 - Two canals in Amsterdam are identical in size, but...Ch. 14.3 - What prevents electrical signals from passing...Ch. 14.3 - Prob. 8CCCh. 14.3 - Prob. 9CCCh. 14.3 - Compare the receptors and channels involved in...
Ch. 14.3 - If a myocardial contractile cell is placed in...Ch. 14.3 - A drug that blocks all Ca2+ channels in the...Ch. 14.3 - Which ions moving in what directions cause the...Ch. 14.3 - At the molecular level, what is happening during...Ch. 14.3 - Lidocaine is a molecule that blocks the action of...Ch. 14.3 - What does increasing K+ permeability do to the...Ch. 14.3 - A new cardiac drug called ivabradine selectively...Ch. 14.3 - Do you think that the Ca2+ channels in...Ch. 14.3 - What happens to the action potential of a...Ch. 14.3 - In an experiment, the vagus nerve, which carries...Ch. 14.4 - Name two functions of the AV node. What is the...Ch. 14.4 - Prob. 22CCCh. 14.4 - Occasionally an ectopic pacemaker {ktopos, out of...Ch. 14.4 - Prob. 24CCCh. 14.4 - Which chamberatrium or ventriclehas higher...Ch. 14.4 - Prob. 26CCCh. 14.4 - Prob. 27CCCh. 14.4 - Prob. 28CCCh. 14.4 - Prob. 29CCCh. 14.4 - Why does ventricular pressure shoot up suddenly at...Ch. 14.4 - Prob. 31CCCh. 14.4 - Prob. 32CCCh. 14.4 - A persons aortic valve opening has become...Ch. 14 - What contributions to understanding the...Ch. 14 - List three functions of the cardiovascular system.Ch. 14 - Prob. 3RQCh. 14 - Prob. 4RQCh. 14 - Prob. 5RQCh. 14 - Prob. 6RQCh. 14 - Prob. 7RQCh. 14 - Distinguish between the two members of each of the...Ch. 14 - Prob. 9RQCh. 14 - Prob. 10RQCh. 14 - What is the proper term for each of the following?...Ch. 14 - List the events of the cardiac cycle in sequence,...Ch. 14 - Prob. 13RQCh. 14 - Compare and contrast the structure of a cardiac...Ch. 14 - Prob. 15RQCh. 14 - Correlate the waves of an ECG with mechanical...Ch. 14 - Prob. 17RQCh. 14 - List and briefly explain four types of information...Ch. 14 - Define inotropic effect. Name two drugs that have...Ch. 14 - Prob. 20RQCh. 14 - Police Captain Jeffers has suffered a myocardial...Ch. 14 - Prob. 22RQCh. 14 - Prob. 23RQCh. 14 - Police Captain Jeffers in question 21 has an...Ch. 14 - Prob. 25RQCh. 14 - Prob. 26RQCh. 14 - Prob. 27RQCh. 14 - A person has a total blood volume of 5 L. Of this...
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- What is the difference between stroke volume and Ejection fractionarrow_forwardDesceibe ecg waves with diagramarrow_forwardThe cardiac output of 70-year-old man at rest is 5.5L / min; mean HR is 85 bpm. Left ventricular end-diastolic volume (LVEDV) is estimated to average 85 ml. What is the mean ejection fraction?arrow_forward
- Use an arrow to indicate where DORV would occur on the flow chart (right ventricle to aorta and pulmonary trunk)arrow_forwardRelationship between pressure, volume and ECG Pressure (mmHg) Volume (ml) ECG 120 80 40 130 90 50 IVC Aortic valve opens Mitral valve closes Systole ejection EDV Ejection Contraction IVR Aortic valve closes Diastole filling Mitral valve opens Filling ESV Relaxation Filling Aortic pressure Left ventricular pressure Left atrial pressure Left ventricular volume Hint: utilize PV loop to guide you in creating the cardiac cycle diagrams. LVP (mmHg) LV Vol (ml) LVP (mmHg) 100- 0 100 0 150 100 50 Aortic 2 Valve Opening Mitral Valve Closing a b Aortic Valve Closing ESPVR Mitral Valve Opening to 0 Systole Plot the tension in the left ventricle, assuming that only the diameter changes during the cardiac cycle. 3 d 50 ↑ ESV с d C 3 Time a Diastole SV - EDV ------ESV 100 a Aortic Valve Closing Mitral Valve Opening LV Vol (ml) Aortic Valve Opening Mitral Valve b closing EDV EDPVR 150arrow_forwardUse the ecg graph to explainarrow_forward
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