When the heart pumps blood, it produces characteristic sound, which can be heard by the use of stethoscope. When the stethoscope is placed at a particular site in relation to the heart valves

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Chapter 20, Problem 19RAC

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When the heart pumps blood, it produces characteristic sound, which can be heard by the use of stethoscope. When the stethoscope is placed at a particular site in relation to the heart valves

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The “lubb” sound (first heart sound) is caused by thea. closing of the AV valves.b. closing of the semilunar valves.c. blood rushing out of the ventricles.d. filling of the ventricles.e. ventricular contraction.

While the semilunar valves are open during a normal cardiac cycle, thepressure in the left ventricle isa. higher than the pressure in the aorta.b. lower than the pressure in the aorta.c. the same as the pressure in the left atrium.d. lower than the pressure in the left atrium.

Which of the following statements is true about the SA (sinoatrial) node? a. The action potential created by the pacemaker cells of the SA node directly stimulates the contractile cells of both the atria and ventricles. b. The rate of spontaneous depolarization of nodal cells is the fastest in the SA node. c. Pacemaker cells in the SA node form a pathway between the SA and AV nodes. d. The pacemaker cells, which establish the heart rate, are located only in the SA node.

Answer 2

Question

Chapter 20, Problem 19RAC

Summary Introduction

Introduction:

When the heart pumps blood, it produces characteristic sound, which can be heard by the use of stethoscope. When the stethoscope is placed at a particular site in relation to the heart valves

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Answer 3

Question

Chapter 20, Problem 19RAC

Summary Introduction

Introduction:

When the heart pumps blood, it produces characteristic sound, which can be heard by the use of stethoscope. When the stethoscope is placed at a particular site in relation to the heart valves

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Answer 4

Question

Chapter 20, Problem 19RAC

Summary Introduction

Introduction:

When the heart pumps blood, it produces characteristic sound, which can be heard by the use of stethoscope. When the stethoscope is placed at a particular site in relation to the heart valves

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Answer 5

Chapter 20, Problem 19RAC

Summary Introduction

Introduction:

When the heart pumps blood, it produces characteristic sound, which can be heard by the use of stethoscope. When the stethoscope is placed at a particular site in relation to the heart valves

Answer 6

Chapter 20, Problem 19RAC

Summary Introduction

Introduction:

When the heart pumps blood, it produces characteristic sound, which can be heard by the use of stethoscope. When the stethoscope is placed at a particular site in relation to the heart valves

Answer 7

Chapter 20, Problem 19RAC

Summary Introduction

Introduction:

When the heart pumps blood, it produces characteristic sound, which can be heard by the use of stethoscope. When the stethoscope is placed at a particular site in relation to the heart valves

Answer 8

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Answer 11

Ch. 20.1 - State the four functions of the heart.Ch. 20.2 - What is the approximate size and shape of the...Ch. 20.2 - Where is the heart located? How does this...Ch. 20.3 - Describe the parts of the pericardium and their...Ch. 20.3 - Describe the three layers of the heart wall, and...Ch. 20.3 - Name the chambers of the heart, and describe their...Ch. 20.3 - List the major blood vessels that enter and leave...Ch. 20.3 - Prob. 8AYP Ch. 20.3 - Prob. 9AYP Ch. 20.3 - Prob. 10AYP

When the heart pumps blood, it produces characteristic sound, which can be heard by the use of stethoscope. When the stethoscope is placed at a particular site in relation to the heart valves

Solution Summary: The author explains that when the heart pumps blood, it produces characteristic sound, which can be heard by the use of stethoscope. The correct answer is option (a) closing of the AV valves.

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Introduction:

When the heart pumps blood, it produces characteristic sound, which can be heard by the use of stethoscope. When the stethoscope is placed at a particular site in relation to the heart valves

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Chapter 20 Solutions

When the heart pumps blood, it produces characteristic sound, which can be heard by the use of stethoscope. When the stethoscope is placed at a particular site in relation to the heart valves

Solution Summary: The author explains that when the heart pumps blood, it produces characteristic sound, which can be heard by the use of stethoscope. The correct answer is option (a) closing of the AV valves.

Videos

Introduction: When the heart pumps blood, it produces characteristic sound, which can be heard by the use of stethoscope. When the stethoscope is placed at a particular site in relation to the heart valves

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Chapter 20 Solutions

Introduction:

When the heart pumps blood, it produces characteristic sound, which can be heard by the use of stethoscope. When the stethoscope is placed at a particular site in relation to the heart valves