ch18 test - SHORT ANSWER Write the word or phrase that best...

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SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.Figure 18.1 Using Figure 18.1, match the following: 1)Purkinje fibers 2)SA node 3)AV bundle 4)AV node 5)Bundle branches Using Figure 18.2, match the following: 6)Atrial depolarization 7)Point after which pressure begins to rise in the aorta 8)Ventricular repolarization 9)Point that represents the "dup" sound made by the heart Using Figure 18.3, match the following: 10)Ventricular fibrillation 11)Second-degree heart block 12)Junctional rhythm 13)Normal sinus rhythm MATCHING. Choose the item in column 2 that best matches each item in column 1.Match the following: 14)The inner lining of the heart 15)Heart muscle. 16)Serous layer covering the heartmuscle. 17)The outermost layer of the serouspericardium. A)Epicardium B)Myocardium C)Endocardium D)Parietal layer Match the following: 18)The pacemaker of the heart. 19)Found in the interventricular septum. 20)Network found in the ventricularmyocardium. 21)The point in the conduction system ofthe heart where the impulse istemporarily delayed. A)AV node B)AV bundle C)SA node D)Purkinje fibers Match the following:22)Prevents backflow into the leftventricle. 23)Prevents backflow into the rightatrium. 24)Prevents backflow into the left atrium. 25)Prevents backflow into the rightventricle. 26)AV valve with two flaps. 27)AV valve with three flaps. A)Pulmonary valves B)Tricuspid valve C)Aortic valve D)Mitral valve Using Figure 18.4, match the following: 28)Tricuspid valve 29)Mitral valve 30)Right atrium 31)Left ventricle 32)Pulmonary veins MATCHING. Choose the item in column 2 that best matches each item in column 1.Match the following: 33)Heart muscle is deprived of oxygen. 34)Death of heart muscle cells.
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A)Infarction B)Ischemia 35)A condition of rapid and irregular orout-of-phase contraction of heartmuscle cells. 36)An abnormal pacemaker. 37)Total heart relaxation. A)Ectopic focus B)Quiescent period C)Fibrillation TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 38)The myocardium receives its blood supply from the coronary arteries.38) 39)Cardiac muscle has more mitochondria and depends less on a continual supply of oxygen thandoes skeletal muscle.39) 40)Anastomoses among coronary arterial branches provide collateral routes for blood delivery to theheart muscle.40) 41)Congestive heart failure means that the pumping efficiency of the heart is depressed so that there isinadequate delivery of blood to body tissues.41) 42)Tissues damaged by myocardial infarction are replaced by connective tissue. 43)The left side of the heart pumps the same volume of blood as the right 44)Chronic release of excess thyroxine can cause a sustained increase in heart rate and a weakenedheart. 45)Arterial blood supply to heart muscle is continuous whether the heart is in systole or diastole
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ch18 test - SHORT ANSWER Write the word or phrase that best...

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