Human Anatomy & Physiology (2nd Edition)

2nd Edition

ISBN: 9780134553511

Author: Erin C. Amerman

Publisher: PEARSON

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Textbook Question

Chapter 17.4, Problem 1QC

What causes the heart sounds S1 and S2?

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Chapter 17.3, Problem 8QC

Chapter 17.4, Problem 2QC

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Chapter 17 Solutions

Human Anatomy & Physiology (2nd Edition)

Ch. 17.1 - Where is the heart located, and how large is it?Ch. 17.1 - What are the hearts upper and lower chambers...Ch. 17.1 - What are the sources from which blood flows into...Ch. 17.1 - 4. Which side of the heart is considered the...Ch. 17.1 - Which side of the heart is considered the systemic...Ch. 17.2 - Prob. 1QC Ch. 17.2 - Prob. 2QC Ch. 17.2 - 3. What are the three layers of the heart wall,...Ch. 17.2 - 4. What are the four main great vessels? From...Ch. 17.2 - How do the right and left ventricles differ in...

Ch. 17.2 - 6. Why do you think it is important to ensure via...Ch. 17.2 - 7. What is the overall pathway of blood flow...Ch. 17.2 - Prob. 8QC Ch. 17.2 - Prob. 9QC Ch. 17.2 - Prob. 10QC Ch. 17.3 - How do pacemaker and contractile cells differ?...Ch. 17.3 - 2. What are intercalated discs? What is their...Ch. 17.3 - Prob. 3QC Ch. 17.3 - Prob. 4QC Ch. 17.3 - What is the sequence of events of a contractile...Ch. 17.3 - How does the refractory period of cardiac muscle...Ch. 17.3 - 7. What does an ECG record? Ch. 17.3 - What are the five waves in an ECG, and what do...Ch. 17.4 - What causes the heart sounds S1 and S2?Ch. 17.4 - Prob. 2QC Ch. 17.4 - Prob. 3QC Ch. 17.4 - Is the end-diastolic or the end-systolic volume of...Ch. 17.4 - 5. Walk through the mechanical events of the...Ch. 17.4 - 6. Relate the ECG waves to the cardiac cycle...Ch. 17.4 - 7. How does the left ventricular pressure...Ch. 17.5 - Prob. 1QC Ch. 17.5 - What is cardiac output? How does it relate to...Ch. 17.5 - Prob. 3QC Ch. 17.5 - What is the Frank-Starling law, and how does it...Ch. 17.5 - What is a chronotropic agent?Ch. 17.5 - Prob. 6QC Ch. 17.5 - 7. What effects does the parasympathetic nervous...Ch. 17.5 - How would a hormone that decreases the amount of...Ch. 17.5 - How is heart failure defined?Ch. 17 - 1. Mark the following statements as true or false....Ch. 17 - 2. The pericardial cavity is located between: a....Ch. 17 - 3. Which of the following statements is true? a....Ch. 17 - Match the following terms with the correct...Ch. 17 - Fill in the blanks: The coronary arteries are the...Ch. 17 - 6. How do pacemaker cardiac muscle cells differ...Ch. 17 - 7. Cardiac muscle cells are joined by structures...Ch. 17 - Prob. 8CYR Ch. 17 - Prob. 9CYR Ch. 17 - 10. The _________is the primary pacemaker of the...Ch. 17 - The AV node delay: a. allows the atria and...Ch. 17 - Explain what each of the following terms...Ch. 17 - 13. Mark the following statements as true or...Ch. 17 - Prob. 14CYR Ch. 17 - 15. Fill in the blanks: The first heart sound is...Ch. 17 - Cardiac output is equal to: a. end-diastolic...Ch. 17 - Prob. 17CYR Ch. 17 - 18. Which of the following statements is false? a....Ch. 17 - 1. A birth defect called transposition of great...Ch. 17 - 2. Predict which would be more damaging to...Ch. 17 - 3. When the SA node doesn’t function properly, the...Ch. 17 - Prob. 4CYU Ch. 17 - Prob. 1AYKA Ch. 17 - Prob. 2AYKA Ch. 17 - Prob. 3AYKA Ch. 17 - Prob. 4AYKB

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What causes the heart sounds S1 and S2?

Solution Summary: The author explains that the main cause of S1 and S2 is the closing of AV and SL valves.

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Chapter 17 Solutions