Test bank for ECGs Made Easy 7th Edition by Barbara J Aehlert Chapters 1 - 1

Test bank for ECGs Made Easy
7th Edition by Barbara J Aehlert
Chapters 1 - 10

,ECGs Made Easy 7th Edition by Barbara Aehlert Test Bank
Table of Contents:

Chapter 1. Anatomy & Physiology

Chapter 2. Basic Electrophysiology

Chapter 3. Sinus Mechanisms

Chapter 4. Atrial Rhythms

Chapter 5. Junctional Rhythms

Chapter 6. Ventricular Rhythms

Chapter 7. Atrioventricular Blocks

Chapter 8. Pacemaker Rhythms

Chapter 9. Introduction to the 12-Lead ECG

Chapter 10. Post-Test

,Chapter 01: Anatomy and Physiology Ae
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hlert: ECGs Made Easy, 7th Edition
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MULTIPLE CHOICE x




1. The apex of the heart is formed by the
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a. tip of the left ventricle xx xx xx xx




b. tip of the right atrium xx xx xx xx




c. right atrium and right ventricle xx xx xx xx




d. left atrium and left ventricle xx xx xx xx




ANSWER: A x x




The heart’s apex, or lower portion, is formed by the tip of the left ventricle. The apex lies justab
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ove the diaphragm, between the fifth and sixth ribs, in the midclavicular line.
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OBJ: Identify the surfaces of the heart.
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2. The left atrium receives blood from the
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a. pulmonary veins xx




b. aorta
c. pulmonary arteries xx




d. inferior vena cava xx xx




ANSWER: A x x




The left atrium receives freshly oxygenated blood from the lungs via the right and leftp
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ulmonary veins. xx




OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
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3. The anterior surface of the heart consists primarily of the
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a. left atrium xx




b. right atrium xx




c. left ventricle xx




d. right ventricle xx




ANSWER: D x x




The front (anterior) surface of the heart lies behind the sternum and costal cartilages. It is forme
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d by portions of the right atrium and the left and right ventricles. However, because the heart is
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tilted slightly toward the left in the chest, the right ventricle is the area of the heart thatlies most
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directly behind the sternum.
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OBJ: Identify the surfaces of the heart.
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4. Blood pressure is determined by xx multiplied by xx xx xx xx .
a. stroke volume; heart rate xx xx xx




b. heart rate; cardiac output xx xx xx




c. cardiac output; peripheral vascular resistance xx xx xx xx




d. stroke volume; peripheral vascular resistance xx xx xx xx




ANSWER: C x x




Blood pressure is equal to cardiac output multiplied by peripheral vascular resistance.
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, OBJ: Identify and explain the components of blood pressure and cardiac output.
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5. The right atrium receives venous blood from the head, neck, and thorax via the
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,fromthe remainder of the body via the x x xx xx xx xx xx xx




, and from the heart via the . xx xx xx xx xx xx




a. coronary sinus; superior vena cava; inferior vena cava xx xx xx xx xx xx xx




b. superior vena cava; coronary sinus; inferior vena cava xx xx xx xx xx xx xx




c. inferior vena cava; superior vena cava; coronary sinus xx xx xx xx xx xx xx




d. superior vena cava; inferior vena cava; coronary sinus xx xx xx xx xx xx xx




ANSWER: D x x




The right atrium receives blood low in oxygen from the superior vena cava, which carries blo
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od from the head and upper extremities; the inferior vena cava, which carries blood fromthe l
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ower body; and the coronary sinus, which is the largest vein that drains the heart.
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OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
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6. The heart is divided into
xx xx xx xx chambers but functions as a xx xx xx xx -sided pump. xx




a. two; four xx




b. three; two xx




c. four; two xx




d. four; three xx




ANSWER: C x x




The heart has four chambers: two atria and two ventricles. The right and left sides of the hearta
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re separated by an internal wall of connective tissue called a septum. The interatrial septum se
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parates the right and left atria. The interventricular septum separates the right and left ventricl
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es. The septa separate the heart into two functional pumps. The right atrium and right ventricl
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e make up one pump. The left atrium and left ventricle make up the other.
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OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
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7. Stimulation of alpha1 receptors results in xx xx xx xx xx .
a. increased heart rate xx xx




b. peripheral vasoconstriction xx




c. constriction of bronchial smooth muscle xx xx xx xx




d. increased force of myocardial contraction xx xx xx xx




ANSWER: B x x




Alpha1 receptors are found in the eyes, blood vessels, bladder, and male reproductive organs.S
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timulation of alpha1 receptor sites results in constriction. xx xx xx xx xx xx xx




OBJ: Compare and contrast the effects of sympathetic and parasympathetic stimulation of the heart.
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8. Which side of the heart is a low-pressure system that pumps venous blood to the lungs?
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a. Left
b. Right
ANSWER: B x x




The job of the right side of the heart is to pump unoxygenated blood to and through the lungs to
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the left side of the heart. This is called the pulmonary circulation. The right side of the heartis a lo
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w-pressure system. xx