Human Anatomy (8th Edition)
8th Edition
ISBN: 9780134243818
Author: Elaine N. Marieb, Patricia Brady Wilhelm, Jon B. Mallatt
Publisher: PEARSON
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Chapter 19, Problem 1CRCAQ
Classify the three congenital heart defects-ventricular septal defect, coarctation of the aorta, and tetralogy of Fallot (see Figure 19.18) according to whether they produce (1) mixing of oxygenated and unoxygenated blood, (2) increased workload for the ventricles, or (3) both of these problems.
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Classify the three congenital heart defects—ventricular septal defect, coarctation of the aorta, and tetralogy of Fallot (Figure 19.18)— according to whether they produce (1) mixing of oxygenated and unoxygenated blood, (2) increased workload for the ventricles, or (3) both of these problems.
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Chapter 19 Solutions
Human Anatomy (8th Edition)
Ch. 19 - Prob. 1CYUCh. 19 - Prob. 2CYUCh. 19 - What is another name for the epicardium?Ch. 19 - Identify the heart chamber or chambers that...Ch. 19 - Prob. 5CYUCh. 19 - Prob. 6CYUCh. 19 - During ventricular systole, are the AV valves open...Ch. 19 - Differentiate a stenotic valve from an incompetent...Ch. 19 - What is the significance of the gap junctions in...Ch. 19 - What is the pacemaker of the heart, and where is...
Ch. 19 - Prob. 11CYUCh. 19 - Prob. 12CYUCh. 19 - Prob. 13CYUCh. 19 - How would incomplete formation of the...Ch. 19 - Which chamber of the heart is formed from the...Ch. 19 - What is the single most important factor for...Ch. 19 - The most external part of the pericardium is the...Ch. 19 - Prob. 2RQCh. 19 - How many cusps does the right atrioventricular...Ch. 19 - Prob. 4RQCh. 19 - Prob. 5RQCh. 19 - Prob. 6RQCh. 19 - Prob. 7RQCh. 19 - Prob. 8RQCh. 19 - Prob. 9RQCh. 19 - Which layer of the heart wall is the thickest? (a)...Ch. 19 - The inferior left corner of the heart is located...Ch. 19 - Prob. 12RQCh. 19 - Describe the location of the heart within the...Ch. 19 - Trace a drop of blood through all the heart...Ch. 19 - Prob. 15RQCh. 19 - Sketch the heart and draw all the coronary vessels...Ch. 19 - Prob. 17RQCh. 19 - Prob. 18RQCh. 19 - Make a drawing of the adult heart and the...Ch. 19 - How do the right and left ventricles differ...Ch. 19 - Which is more resistant to fatigue, cardiac muscle...Ch. 19 - Describe the structure and function of an...Ch. 19 - Compare and contrast the structure of cardiac...Ch. 19 - Classify the three congenital heart...Ch. 19 - Prob. 2CRCAQCh. 19 - Prob. 3CRCAQCh. 19 - After a man was stabbed in the chest, his face...Ch. 19 - A heroin addict felt tired, weak, and feverish....Ch. 19 - Another patient had an abnormal heart sound that...Ch. 19 - Prob. 7CRCAQCh. 19 - During a lethal heart attack, a blood. clot lodges...Ch. 19 - Prob. 9CRCAQ
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- Although not considered the primary pacemaker of the heart, the atrioventricular node can indeed be considered as playing SOME role in setting the rhythm of the heart (kind of a secondary pacemaker). Explain how/why.arrow_forwardList the names and synonyms for all four valves of the heart.arrow_forwardSelect the best answer or answers from the choices given: In the heart, which of the following apply? (1) Action potentials are conducted from cell to cell across the myocardium via gap junctions, (2) the SA node sets the pace for the heart as a whole, (3) spontaneous depolarization of cardiac cells can occur in the absence of nerve stimulation, (4) cardiac muscle can continue tocontract for long periods in the absence of oxygen. (a) all of the above, (b) 1, 3, 4, (c) 1, 2, 3, (d) 2, 3.arrow_forward
- Describe the functional differences in the effects of the sympathetic and parasympathetic divisions of the autonomic nervous system on the activity of the heart.arrow_forwardExplain any four problems that occur in the heart cycle because of abnormalities in the amplitudes and time duration of the waves in an ECG with neat sketches.arrow_forwardSelect the FALSE statement: /////////////////www. OA) This abnormal ECG results in increased stroke volume O B) In this abnormal ECG, the ventricles are not stimulated to contract by the SA node, the natural pacemaker. of the heart O C) This abnormal ECG is compatible with life so far as the individual does not engage in strenuous activities OD) This abnormal ECG results in decreased in CO OE) None of the abovearrow_forward
- Describe the general overall shape of the left and right cavities of the ventricles as observed in a transverse section of the heart.arrow_forwardExplain why it is sufficient to replace the ventricles, but not the atria,in artificial heart transplantation.arrow_forwardThe right and left atria of the heart look alike and perform similar functional demands. The right and left ventricle are very different, structurally and functionally. Why are the atria similarities and the difference in the ventricles significant in the role they play in the functional activity of the heart? How would these differences be manifested on an EKG, with details given to the P wave and QRS complex?arrow_forward
- Provide the alternative terms for the contraction and relaxation of heart chambers.arrow_forwardThe left AV valve has only two large leaflets, while the right AV valve has three smaller leaflets. It is a general principle of physiology that structure is a determinant of—and has coevolved with—function. Although it is unknown why the two valves differ in structure in this way, what difference in the functional demands of the left side of the heart might explain why there is one less valve leaflet than on the right side?arrow_forwardComplete the following statements: The membrane on the surface of the heart is called the ......................arrow_forward
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