PRINCIPLES OF ANATOMY+PHYSIOLOGY
16th Edition
ISBN: 9781119821823
Author: Tortora
Publisher: WILEY C
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Question
Chapter 20, Problem 18CP
Summary Introduction
To review:
The events that produce four normal heart sounds and the one that can be heard with the help of a stethoscope.
Introduction:
The heartbeat or heart sounds are generated during a cardiac cycle as blood flows through the different chambers of the heart. The sounds so produced can be heard through a stethoscope. These sounds are referred as ‘lubb’ and ‘dubb’, which signifies efficient functioning of heart.
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What produces the first and the second heart sounds?
Which heart sound is longer in duration and louder, the first or the second heart sound. Briefly explain.
What are normal heart sounds? Where are they best heard? What do these heart sounds indicate?
Chapter 20 Solutions
PRINCIPLES OF ANATOMY+PHYSIOLOGY
Ch. 20 - l. Define each of the following external features...Ch. 20 - 2. Describe the structure of the pericardium and...Ch. 20 - 3. What are the characteristic internal features...Ch. 20 - Prob. 4CPCh. 20 - 5. What is the relationship between wall thickness...Ch. 20 - Prob. 6CPCh. 20 - What causes the heart valves to open and to close?...Ch. 20 - In correct sequence, which heart chambers, heart...Ch. 20 - Prob. 9CPCh. 20 - Prob. 10CP
Ch. 20 - 11. In what ways are autorhythmic fibers similar...Ch. 20 - What happens during each of the three phases of an...Ch. 20 - 13. In what ways are ECGs helpful in diagnosing...Ch. 20 - How does each ECG wave, interval, and segment...Ch. 20 - 15. Why must left ventricular pressure be greater...Ch. 20 - Prob. 16CPCh. 20 - During which two periods of the cardiac cycle do...Ch. 20 - Prob. 18CPCh. 20 - Prob. 19CPCh. 20 - Prob. 20CPCh. 20 - Prob. 21CPCh. 20 - Define cardiac reserve. How does it change with...Ch. 20 - Prob. 23CPCh. 20 - 24. What are some of the cardiovascular benefits...Ch. 20 - Prob. 25CPCh. 20 - Prob. 26CPCh. 20 - Why is the cardiovascular system one of the first...Ch. 20 - From which tissue does the heart develop?Ch. 20 - Gerald recently visited the dentist. During the...Ch. 20 - 2. Unathletic Sylvia resolves to begin an exercise...Ch. 20 - 3. Mr. Perkins is a large, 62-year-old man with a...
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- What event is associated with the first heart sound? With the second heart sound?arrow_forwardWhat is the change in intraventricular pressure between the time the first heart sound begins and thetime it ends?arrow_forwardA) A heart murmur indicates some kind of valve __________?__________. B) A heart valve that has a smaller than average opening is said to be ______________?________. (See heart murmur video) https://www.youtube.com/watch?v=dBwr2GZCmQM C.) Describe where you would place a stethoscope to hear the sounds of each of the following heart valves: -Aortic: -Pulmonary: -Tricuspid: -Mitral: D.) At which of the superficial pulse points would you expect to feel the strongest pulse? ___?____.arrow_forward
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