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Unit 08 Lect G An abnormal El Unit 05 Lect xy E] Quiz: Unit 09 × (H Unit 06 Lect

ID: 3522418 • Letter: U

Question

Unit 08 Lect G An abnormal El Unit 05 Lect xy E] Quiz: Unit 09 × (H Unit 06 Lect? × V E1 iowacconline.instructure.com/courses/17981/quizzes/150189/take D Question 85 A myocardial infarction may result in decreased cardiac output ? True O False Question 86 Where in the body would you find low oxygen levels causing vasoconstriction and high levels causing vasodilation? O kidney o lungs o liver O heart DQuestion 87 An abnormal sound (murmur) due to narrowing or stenosis of the mitral valve might be heard during o diastole o systole Question 88 An ECG provides direct information about valve function.

Explanation / Answer

85) Myocardial infarction occurs as a result of damaged cardiac myocytes in certain part of the cardiac muscles. This decreases the activity of heart by reducing the ejection fraction and thereby cardiac output. So, the given statement is true.

86) Low oxygen levels causing vasoconstriction and high oxygen levels causing vasodilation can be found in lungs. This us the basis of gaseous exchange in alveoli.

87) Abnormal heart sound due to narrowing or stenosis of mitral valve might be heard during diastole.