Human Physiology: An Integrated Approach (8th Edition)
8th Edition
ISBN: 9780134605197
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Chapter 14, Problem 6RQ
Summary Introduction
Introduction: There are three types of muscle fibers: skeletal muscle, smooth muscles, and cardiac muscles. Cardiac muscles are involuntary muscles. These make the tissues of the heart called myocardial tissues.
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Repolarization of ventricular myocardiocytes is caused by ______ the cells through voltage-gated channels.
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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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- Please the events of the cardiac cycle in order.arrow_forwardBlood in the heart chambers is separated from the myocardium by a thin membrane called the _____.arrow_forwardThe endocardium is composed of __________. A collagen fibers and the lumen B myocardiocytes C a think layer of flat epithelial cells D cardiac muscle cellsarrow_forward
- After a period of time without oxygen, the myocardium will undergo necrosis, a condition of __________ of the cells.arrow_forwardThe myocardium of the ____________ ventricle is normally thickest. left rightarrow_forwardCoronary vessels - these supply the heart with a blood supply of its own. -They can be seen in the long groove running down the ventricles on the ventral side of the heart. not reproduce. B. INTERNAL ANATOMY Personal Locate the following structures: foroven The tricuspid valve located between the right atrium and right ventricle. Why is it named as it is? use What does it do in the heart? The endocardium - this is the tissue that lines the heart. Find the papillary muscles in the left and right ventricles and the taut, chordae tendineae. What is their function? only, d Personel use only, do not rep o 2021 04-11 The bicuspid (mitral) valve - the left atrium and left ventricle.roduce. emayato@grnai.comarrow_forward
- During the cardiac cycle, the blood flow in the coronary blood vessels is oppositeto that of the vasculature in the rest of the body. Explain this concept.arrow_forwardOne complete heart beat goes from _______.arrow_forwardAll the positive charges are inside the myocardial cell fiber and all the negative charges are on the outside of the cell fiber. Shows _________ wave completed. Question 10 options: Depolarization Repolarizationarrow_forward
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