Explanation During arterial filling, the atria are at rest position. The pressure is low in atria while the pressure in vena cava is high. This is because the vena cava carries de...

8th Edition

ISBN: 9780134714837

Author: Silverthorn

Publisher: PEARSON

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Question

Chapter 14.4, Problem 24CC

Summary Introduction

To determine: Whether the pressure in the atrium is high or low during atrial filling.

Introduction: The cardiac cycle has two phases, one is relaxation, and the other is contraction. The relaxation of cardiac muscles is called diastole. The contraction of cardiac muscles is called systole.

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Chapter 14.4, Problem 23CC

Chapter 14.4, Problem 25CC

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Chapter 14 Solutions

HUMAN PHYSIOLOGY: AN INTEG ACCESS C

Ch. 14.1 - A cardiovascular system has what three major...Ch. 14.1 - What is the difference between (a) the pulmonary...Ch. 14.2 - Which is more important for determining flow...Ch. 14.2 - The two identical tubes below have the pressures...Ch. 14.2 - All four tubes below have the same driving...Ch. 14.2 - Two canals in Amsterdam are identical in size, but...Ch. 14.3 - What prevents electrical signals from passing...Ch. 14.3 - Prob. 8CC Ch. 14.3 - Prob. 9CC Ch. 14.3 - Compare the receptors and channels involved in...

Ch. 14.3 - If a myocardial contractile cell is placed in...Ch. 14.3 - A drug that blocks all Ca2+ channels in the...Ch. 14.3 - Which ions moving in what directions cause the...Ch. 14.3 - At the molecular level, what is happening during...Ch. 14.3 - Lidocaine is a molecule that blocks the action of...Ch. 14.3 - What does increasing K+ permeability do to the...Ch. 14.3 - A new cardiac drug called ivabradine selectively...Ch. 14.3 - Do you think that the Ca2+ channels in...Ch. 14.3 - What happens to the action potential of a...Ch. 14.3 - In an experiment, the vagus nerve, which carries...Ch. 14.4 - Name two functions of the AV node. What is the...Ch. 14.4 - Prob. 22CC Ch. 14.4 - Occasionally an ectopic pacemaker {ktopos, out of...Ch. 14.4 - Prob. 24CC Ch. 14.4 - Which chamberatrium or ventriclehas higher...Ch. 14.4 - Prob. 26CC Ch. 14.4 - Prob. 27CC Ch. 14.4 - Prob. 28CC Ch. 14.4 - Prob. 29CC Ch. 14.4 - Why does ventricular pressure shoot up suddenly at...Ch. 14.4 - Prob. 31CC Ch. 14.4 - Prob. 32CC Ch. 14.4 - A persons aortic valve opening has become...Ch. 14 - What contributions to understanding the...Ch. 14 - List three functions of the cardiovascular system.Ch. 14 - Prob. 3RQ Ch. 14 - Prob. 4RQ Ch. 14 - Prob. 5RQ Ch. 14 - Prob. 6RQ Ch. 14 - Prob. 7RQ Ch. 14 - Distinguish between the two members of each of the...Ch. 14 - Prob. 9RQ Ch. 14 - Prob. 10RQ Ch. 14 - What is the proper term for each of the following?...Ch. 14 - List the events of the cardiac cycle in sequence,...Ch. 14 - Prob. 13RQ Ch. 14 - Compare and contrast the structure of a cardiac...Ch. 14 - Prob. 15RQ Ch. 14 - Correlate the waves of an ECG with mechanical...Ch. 14 - Prob. 17RQ Ch. 14 - List and briefly explain four types of information...Ch. 14 - Define inotropic effect. Name two drugs that have...Ch. 14 - Prob. 20RQ Ch. 14 - Police Captain Jeffers has suffered a myocardial...Ch. 14 - Prob. 22RQ Ch. 14 - Prob. 23RQ Ch. 14 - Police Captain Jeffers in question 21 has an...Ch. 14 - Prob. 25RQ Ch. 14 - Prob. 26RQ Ch. 14 - Prob. 27RQ Ch. 14 - A person has a total blood volume of 5 L. Of this...

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Whether the pressure in the atrium is high or low during atrial filling. Introduction: The cardiac cycle has two phases, one is relaxation, and the other is contraction. The relaxation of cardiac muscles is called diastole. The contraction of cardiac muscles is called systole.

Solution Summary: The author explains that the cardiac cycle has two phases, one is relaxation and the other is contraction. During arterial filling, the atria are at rest position.

Concept explainers

To determine: Whether the pressure in the atrium is high or low during atrial filling. Introduction: The cardiac cycle has two phases, one is relaxation, and the other is contraction. The relaxation of cardiac muscles is called diastole. The contraction of cardiac muscles is called systole.

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Chapter 14 Solutions

To determine: Whether the pressure in the atrium is high or low during atrial filling.

Introduction: The cardiac cycle has two phases, one is relaxation, and the other is contraction. The relaxation of cardiac muscles is called diastole. The contraction of cardiac muscles is called systole.