Human Physiology
15th Edition
ISBN: 9781259864629
Author: Fox, Stuart Ira
Publisher: Mcgraw-hill Education,
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Textbook Question
Chapter 13, Problem 18RA
Describe how the pacemaker cells produce a spontaneous diastolic depolarization, and how this leads to the production of action potentials.
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Describe how the pacemaker cells produce a spontaneous diastolic depolarization, and how this leadsto the production of action potentials.
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Describe cardiac output, including the factors involved in its regulation.
Chapter 13 Solutions
Human Physiology
Ch. 13 - State the components of the circulatory system...Ch. 13 - Prob. 1bCPCh. 13 - Prob. 2CPCh. 13 - Prob. 3CPCh. 13 - Describe how the rate of erythropoiesis is...Ch. 13 - Prob. 5aCPCh. 13 - Prob. 5bCPCh. 13 - Using a flow diagram (arrows), describe the...Ch. 13 - Use a flow diagram to describe the systemic...Ch. 13 - List the AV valves and the valves of the pulmonary...
Ch. 13 - Discuss how defective valves affect blood flow...Ch. 13 - Prob. 7bCPCh. 13 - Prob. 8aCPCh. 13 - Prob. 8bCPCh. 13 - Draw a figure to illustrate the pressure...Ch. 13 - Prob. 10aCPCh. 13 - Using a line diagram, illustrate a myocardial...Ch. 13 - Draw an ECG and label the waves. Indicate the...Ch. 13 - Draw a figure that shows the relationship between...Ch. 13 - Prob. 11cCPCh. 13 - Prob. 12aCPCh. 13 - Prob. 12bCPCh. 13 - Explain the functions of capillaries and describe...Ch. 13 - Prob. 14CPCh. 13 - Prob. 15CPCh. 13 - Identify normal and pathological causes of...Ch. 13 - Prob. 16bCPCh. 13 - Prob. 17aCPCh. 13 - Explain how the lymphatic system and the...Ch. 13 - Prob. 18CPCh. 13 - Prob. 1RACh. 13 - All arteries in the body contain oxygen-rich blood...Ch. 13 - The "lub," or first heart sound, is produced by...Ch. 13 - The first heart sound is produced at
Ch. 13 - Changes in the cardiac rate primarily reflect...Ch. 13 - Prob. 6RACh. 13 - Prob. 7RACh. 13 - The cells that normally have the fastest rate of...Ch. 13 - Which of these statements is true? a. The heart...Ch. 13 - Prob. 10RACh. 13 - Prob. 11RACh. 13 - Prob. 12RACh. 13 - Prob. 13RACh. 13 - Prob. 14RACh. 13 - Prob. 15RACh. 13 - During the phase of isovolumetric relaxation of...Ch. 13 - Peristaltic waves of contraction move fluid within...Ch. 13 - Describe how the pacemaker cells produce a...Ch. 13 - What characteristic of the SA node distinguishes...Ch. 13 - Compare the duration of the heart's contraction...Ch. 13 - Step by step, describe the pressure changes that...Ch. 13 - Can a detective valve be detected by an ECG? Can a...Ch. 13 - Describe the causes of the P, QRS, and T waves of...Ch. 13 - The lungs are the only organs that receive the...Ch. 13 - Prob. 25RACh. 13 - Prob. 26RACh. 13 - Prob. 27RACh. 13 - Prob. 28RACh. 13 - Prob. 29RACh. 13 - Prob. 30RACh. 13 - Prob. 31RACh. 13 - Prob. 32RACh. 13 - Prob. 33RACh. 13 - Prob. 34RACh. 13 - Prob. 35RACh. 13 - Prob. 36RACh. 13 - Prob. 37RACh. 13 - Prob. 38RACh. 13 - Prob. 39RACh. 13 - Prob. 40RACh. 13 - Prob. 41RACh. 13 - Prob. 42RA
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- Describe the mechanical events of the cardiac cycle. (use terms like atrial systole, atrial diastole, ventricular diastole, ventricular systole, isovolumic ventricular contraction, isovolumic ventricular relaxation, ventricular ejection, period of rapid filling)arrow_forwardDescribe the pathway of action potentials through the cardiac conduction system and explain its association with contractions of the atria and ventriclesarrow_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
- Describe the intrinsic and extrinsic factors that affect myocardial contractility.arrow_forwardDescribe the functional differences in the effects of thesympathetic and parasympathetic divisions of the autonomicnervous system on the activity of cardiac muscle.arrow_forwardDescribe the pacemaker potential and the myocardial action potential, and explain how the latter correlates with myocardial contraction and relaxation.arrow_forward
- Describe 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 functional differences in the effects of the sympathetic and parasympathetic divisions of the autonomic nervous system on the activity of the heart.arrow_forward
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