PRINCIPLES OF HUMAN PHYSIOLOGY (LCPO)
6th Edition
ISBN: 9780134289359
Author: STANFIELD
Publisher: PEARSON
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Textbook Question
Chapter 13, Problem 29E
Describe the process of action potential propagation through the heart. Include a description of the role of pacemaker cells and gap junctions in cardiac electrical activity.
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Chapter 13 Solutions
PRINCIPLES OF HUMAN PHYSIOLOGY (LCPO)
Ch. 13.1 - What are the “receiving chambers” of the heart...Ch. 13.1 - Prob. 13.1.2QCCh. 13.1 - Prob. 13.1.3QCCh. 13.2 - Prob. 1CTQCh. 13.2 - Prob. 2CTQCh. 13.2 - Prob. 3CTQCh. 13.2 - Which organs receive blood flowing through the...Ch. 13.2 - Prob. 13.2.2QCCh. 13.2 - Prob. 13.2.3QCCh. 13.3 - Prob. 13.3.1QC
Ch. 13.3 - Prob. 13.3.2QCCh. 13.3 - Prob. 13.3.3QCCh. 13.3 - Prob. 13.3.4QCCh. 13.4 - Under normal conditions, which controls the...Ch. 13.4 - Arrange the order of the following terms so that...Ch. 13.4 - The entry of calcium into a ventricular muscle...Ch. 13.4 - Match the terms P wave. QRS complex. and T wave...Ch. 13.5 - Prob. 13.5.1QCCh. 13.5 - Descnbe the relationship between the different...Ch. 13.6 - Write the equation showing the relationship...Ch. 13.6 - Prob. 13.6.2QCCh. 13.6 - Prob. 13.6.3QCCh. 13.6 - What is Starlings law of the heart? Why is it an...Ch. 13.6 - Prob. 13.7.2QCCh. 13.6 - Prob. 13.7.3QCCh. 13 - Prob. 1ECh. 13 - Prob. 2ECh. 13 - Prob. 3ECh. 13 - Prob. 4ECh. 13 - Prob. 5ECh. 13 - Which of the following contains deoxygenated...Ch. 13 - Which of the following is not normally apparent in...Ch. 13 - The second heart sound occurs when the semilunar...Ch. 13 - Prob. 9ECh. 13 - Prob. 10ECh. 13 - Prob. 11ECh. 13 - Prob. 12ECh. 13 - Prob. 13ECh. 13 - Prob. 14ECh. 13 - Prob. 15ECh. 13 - Prob. 16ECh. 13 - Prob. 17ECh. 13 - Prob. 18ECh. 13 - Prob. 19ECh. 13 - Under normal conditions, pressures in the left and...Ch. 13 - Stroke volume and ____ completely determine...Ch. 13 - If end-diastolic volume does not change but...Ch. 13 - Prob. 23ECh. 13 - Prob. 24ECh. 13 - Prob. 25ECh. 13 - Prob. 26ECh. 13 - Prob. 27ECh. 13 - Prob. 28ECh. 13 - Describe the process of action potential...Ch. 13 - Prob. 30ECh. 13 - Prob. 31ECh. 13 - Jane trained for a marathon for 6 months. Her...Ch. 13 - Cardiac arrhythmias are often treated with...Ch. 13 -
Damage to a valve can often be detected by...Ch. 13 - In the ECG trace below, label all of the P. QRS....
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- Describe the properties of the cardiac muscle, including automaticity, excitability, conductivity, and contractility.arrow_forwardDescribe the redistribution of cardiac output during exercise to the CNS, coronary, splanchnic, cutaneous, and skeletal muscle vascular beds during sustained exercise (distance running).arrow_forwardDescribe the causes of the P, QRS, and T waves of an ECG, and indicate at which point in the cardiac cycle each of these waves occurs. Explain why the first heart sound occurs immediately after the QRSwave and why the second sound occurs at the time of the T wave.arrow_forward
- When a heart is transplanted into a patient, it is not possible to connect autonomic neurons from the medullary cardiovascular centers to the new heart. Will such a patient be able to increase cardiac output during exercise? Hint: Recall the effects of circulating catecholamines and changes in venous return on cardiac output.arrow_forwardDescribe the pressure changes in the atria and ventriclesduring a cardiac cycle.arrow_forwardExplain how the blood volume in the left ventricle changes throughout the cardiac cycle in response to changes in left atrial pressure, left ventricular pressure, and aortic pressure. Start with the relaxation of the ventricle at the beginning of diastole.arrow_forward
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