TEST BANK For ECGs Made Easy, 7th Edition by Barbara J Aehlert,(UPDATED 2025!!)

,ECGsMadeEasy 7thEditionbyBarbara Aehlert TestBank Table
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of Contents:
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Chapter1.Anatomy &Physiology
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Chapter2.Basic Electrophysiology
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Chapter3.Sinus Mechanisms
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Chapter4.AtrialRhythms
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Chapter5.JunctionalRhythms
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Chapter6.VentricularRhythms
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Chapter7.AtrioventricularBlocks
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Chapter8.PacemakerRhythms
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Chapter9.Introductionto the12-Lead ECG
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Chapter10.Post-Test
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,Chapter 01: Anatomy and Physiology
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Aehlert:ECGs Made Easy,7thEdition
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MULTIPLE CHOICE v




1. The apex of the heart is formed by the
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a. tip of the left ventricle
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b. tip of the right atrium
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c. right atrium and right ventricle v v v v


d. left atrium and left ventricle
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ANS: A v


The heart’s apex, or lower portion, is formed by the tip of the left ventricle. The apex lies just
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above the diaphragm, between the fifth and sixth ribs, in the midclavicular line.
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OBJ: v v Identify the surfaces of the heart. v v v v v




2. The left atrium receives blood from the
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a. pulmonary veins v


b. aorta
c. pulmonary arteries v


d. inferior vena cava v v




ANS: A v


The left atrium receives freshly oxygenated blood from the lungs via the right and left
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pulmonary veins.
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OBJ: v v 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 v


b. right atrium v


c. left ventricle v


d. right ventricle v




ANS: D v


The front (anterior) surface of the heart lies behind the sternum and costal cartilages. It is
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formed by portions of the right atrium and the left and right ventricles. However, because the
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heart is tilted slightly toward the left in the chest, the right ventricle is the area of the heart that
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lies most directly behind the sternum.
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OBJ: v v Identify the surfaces of the heart. v v v v v




4. Blood pressure is determined by
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a. stroke volume; heart rate v v v


b. heart rate; cardiac output v v v


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


d. stroke volume; peripheral vascular resistance
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ANS: C v


Blood pressure is equal to cardiac output multiplied by peripheral vascular resistance.
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, OBJ: v v 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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the remainder of the body via the
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a. coronary sinus; superior vena cava; inferior vena cava v v v v v v v


b. superior vena cava; coronarysinus; inferior vena cava v v v v v v v


c. inferior vena cava; superior vena cava; coronary sinus
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d. superior vena cava; inferior vena cava; coronary sinusv v v v v v v




ANS: D v


The right atrium receives blood low in oxygen from the superior vena cava, which carries
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blood from the head and upper extremities; the inferior vena cava, which carries blood from
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the lower body; and the coronary sinus, which is the largest vein that drains the heart.
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OBJ: v v 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
v v v v chambers but functions as a v v v v -sided pump. v


a. two; four v


b. three; two v


c. four; two v


d. four; three v




ANS: C v


The heart has four chambers: two atria and two ventricles. The right and left sides of the heart
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are separated by an internal wall of connective tissue called a septum. The interatrial septum
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separates the right and left atria. The interventricular septum separates the right and left
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ventricles. The septa separate the heart into two functional pumps. The right atrium and right
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ventricle make up one pump. The left atrium and left ventricle make up the other.
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OBJ: v v 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 v v v v v .
a. increased heart rate v v


b. peripheral vasoconstriction v


c. constriction of bronchial smooth muscle v v v v


d. increased force of myocardial contraction v v v v




ANS: B v


Alpha1 receptors are found in the eyes, blood vessels, bladder, and male reproductive organs.
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Stimulation of alpha1 receptor sites results in constriction.
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OBJ: v v 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
ANS: B v


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