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The Only EKG Book You’ll Ever Need 9th
Edition Thaler Test Bank
Chapter 1: The Basics
MULTIPLE CHOICE
1. The apex of the heart is formed by the .
a. tip of the left ventricle
b. tip of the right atrium
c. right atrium and right ventricle
d. left atrium and left ventricle
ANS: A
The heart’s apex, or lower portion, is formed by the tip of the left ventricle. The
apex lies just above the diaphragm, between the fifth and sixth ribs, in the
midclavicular line.
OBJ: Identify the surfaces of the heart.
2. The left atrium receives blood from the .
a. pulmonary veins
b. aorta
c. pulmonary arteries
d. inferior vena cava
ANS: A
The left atrium receives freshly oxygenated blood from the lungs via the right and
left pulmonary veins.
OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
3. The anterior surface of the heart consists primarily of the .
a. left atrium
b. right atrium
c. left ventricle
d. right ventricle
ANS: D
The front (anterior) surface of the heart lies behind the sternum and costal
cartilages. It is formed by portions of the right atrium and the left and right
ventricles. However, because the heart is tilted slightly toward the left in the
chest, the right ventricle is the area of the heart that lies most directly behind the
sternum.
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OBJ: Identify the surfaces of the heart.
4. Blood pressure is determined by multiplied by .
a. stroke volume; heart rate
b. heart rate; cardiac output
c. cardiac output; peripheral vascular
resistance
d. stroke volume; peripheral vascular
resistance
ANS: C
Blood pressure is equal to cardiac output multiplied by peripheral vascular
resistance.
OBJ: Identify and explain the components of blood pressure and cardiac output.
5. The right atrium receives venous blood from the head, neck, and
thorax via the , from the remainder of the body via the , and from the
heart via the .
a. coronary sinus; superior vena cava;
inferior vena cava
b. superior vena cava; coronary sinus;
inferior vena cava
c. inferior vena cava; superior vena cava;
coronary sinus
d. superior vena cava; inferior vena cava;
coronary sinus
ANS: D
The right atrium receives blood low in oxygen from the superior vena cava, which
carries blood from the head and upper extremities; the inferior vena cava, which
carries blood from the lower body; and the coronary sinus, which is the largest
vein that drains the heart.
OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
6. The heart is divided into chambers but functions as a -
sided pump.
a. two; four
b. three; two
c. four; two
d. four; three
ANS: C
The heart has four chambers: two atria and two ventricles. The right and left
sides of the heart are separated by an internal wall of connective tissue called a
septum. The interatrial septum separates the right and left atria. The
interventricular septum separates the right and left ventricles. The septa separate
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the heart into two functional pumps. The right atrium and right ventricle make up
one pump. The left atrium and left ventricle make up the other.
OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
7. Stimulation of alpha1 receptors results in .
a. increased heart rate
b. peripheral vasoconstriction
c. constriction of bronchial smooth muscle
d. increased force of myocardial contraction
ANS: B
Alpha1 receptors are found in the eyes, blood vessels, bladder, and male
reproductive organs. Stimulation of alpha1 receptor sites results in constriction.
OBJ: Compare and contrast the effects of sympathetic and parasympathetic stimulation of the
heart.
8. Which side of the heart is a low-pressure system that pumps
venous blood to the lungs?
a. Left
b. Right
ANS: B
The job of the right side of the heart is to pump unoxygenated blood to and
through the lungs to the left side of the heart. This is called the pulmonary
circulation. The right side of the heart is a low-pressure system.
OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
9. Which side of the heart is a high-pressure system that pumps
arterial blood to the systemic circulation?
a. Left
b. Right
ANS: A
The left side of the heart is a high-pressure pump. The job of the left heart is to
receive oxygenated blood and pump it out to the rest of the body. This is called
the systemic circulation. The left ventricle is a high-pressure chamber. Its wall is
much thicker than the right ventricle (the right ventricle is 3 to 5 mm thick; the left
ventricle is 13 to 15 mm thick). This is because the left ventricle must overcome a
lot of pressure and resistance from the arteries and contract forcefully in order to
pump blood out to the body.
OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
10. The thick, muscular middle layer of the heart wall that contains the
atrial and ventricular muscle fibers necessary for contraction is the .
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a. epicardium
b. pericardium
c. myocardium
d. endocardium
ANS: C
The myocardium (middle layer) is a thick, muscular layer that consists of cardiac
muscle fibers (cells) responsible for the pumping action of the heart.
OBJ: Describe the structure and function of the coverings of the heart.
11. Blood flows from the right atrium through the valve into the
right ventricle.
a. mitral
b. aortic
c. pulmonic
d. tricuspid
ANS: D
Blood flows from the right atrium through the tricuspid valve into the right
ventricle.
OBJ: Beginning with the right atrium, describe blood flow through the normal heart and lungs to
the systemic circulation.
12.Rapid ejection of blood from the ventricular chambers of the heart
occurs because the and valves open.
a. pulmonic; aortic
b. tricuspid; mitral
c. pulmonic; mitral
d. tricuspid; aortic
ANS: A
When the ventricles contract, the pulmonic and aortic valves open, allowing
blood to flow out of the ventricles.
OBJ: Name and identify the location of the atrioventricular (AV) and semilunar (SL) valves.
13. The base of the heart is found at approximately the level of the
rib(s).
a. first
b. second
c. fourth
d. fifth and sixth
ANS: B
The base of the heart is its upper portion and is formed mainly by the left atrium,
with a small amount of right atrium. It lies at approximately the level of the
WWW.NURSINGTESTBANKSWORLD.COM
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The Only EKG Book You’ll Ever Need 9th
Edition Thaler Test Bank
Chapter 1: The Basics
MULTIPLE CHOICE
1. The apex of the heart is formed by the .
a. tip of the left ventricle
b. tip of the right atrium
c. right atrium and right ventricle
d. left atrium and left ventricle
ANS: A
The heart’s apex, or lower portion, is formed by the tip of the left ventricle. The
apex lies just above the diaphragm, between the fifth and sixth ribs, in the
midclavicular line.
OBJ: Identify the surfaces of the heart.
2. The left atrium receives blood from the .
a. pulmonary veins
b. aorta
c. pulmonary arteries
d. inferior vena cava
ANS: A
The left atrium receives freshly oxygenated blood from the lungs via the right and
left pulmonary veins.
OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
3. The anterior surface of the heart consists primarily of the .
a. left atrium
b. right atrium
c. left ventricle
d. right ventricle
ANS: D
The front (anterior) surface of the heart lies behind the sternum and costal
cartilages. It is formed by portions of the right atrium and the left and right
ventricles. However, because the heart is tilted slightly toward the left in the
chest, the right ventricle is the area of the heart that lies most directly behind the
sternum.
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OBJ: Identify the surfaces of the heart.
4. Blood pressure is determined by multiplied by .
a. stroke volume; heart rate
b. heart rate; cardiac output
c. cardiac output; peripheral vascular
resistance
d. stroke volume; peripheral vascular
resistance
ANS: C
Blood pressure is equal to cardiac output multiplied by peripheral vascular
resistance.
OBJ: Identify and explain the components of blood pressure and cardiac output.
5. The right atrium receives venous blood from the head, neck, and
thorax via the , from the remainder of the body via the , and from the
heart via the .
a. coronary sinus; superior vena cava;
inferior vena cava
b. superior vena cava; coronary sinus;
inferior vena cava
c. inferior vena cava; superior vena cava;
coronary sinus
d. superior vena cava; inferior vena cava;
coronary sinus
ANS: D
The right atrium receives blood low in oxygen from the superior vena cava, which
carries blood from the head and upper extremities; the inferior vena cava, which
carries blood from the lower body; and the coronary sinus, which is the largest
vein that drains the heart.
OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
6. The heart is divided into chambers but functions as a -
sided pump.
a. two; four
b. three; two
c. four; two
d. four; three
ANS: C
The heart has four chambers: two atria and two ventricles. The right and left
sides of the heart are separated by an internal wall of connective tissue called a
septum. The interatrial septum separates the right and left atria. The
interventricular septum separates the right and left ventricles. The septa separate
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the heart into two functional pumps. The right atrium and right ventricle make up
one pump. The left atrium and left ventricle make up the other.
OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
7. Stimulation of alpha1 receptors results in .
a. increased heart rate
b. peripheral vasoconstriction
c. constriction of bronchial smooth muscle
d. increased force of myocardial contraction
ANS: B
Alpha1 receptors are found in the eyes, blood vessels, bladder, and male
reproductive organs. Stimulation of alpha1 receptor sites results in constriction.
OBJ: Compare and contrast the effects of sympathetic and parasympathetic stimulation of the
heart.
8. Which side of the heart is a low-pressure system that pumps
venous blood to the lungs?
a. Left
b. Right
ANS: B
The job of the right side of the heart is to pump unoxygenated blood to and
through the lungs to the left side of the heart. This is called the pulmonary
circulation. The right side of the heart is a low-pressure system.
OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
9. Which side of the heart is a high-pressure system that pumps
arterial blood to the systemic circulation?
a. Left
b. Right
ANS: A
The left side of the heart is a high-pressure pump. The job of the left heart is to
receive oxygenated blood and pump it out to the rest of the body. This is called
the systemic circulation. The left ventricle is a high-pressure chamber. Its wall is
much thicker than the right ventricle (the right ventricle is 3 to 5 mm thick; the left
ventricle is 13 to 15 mm thick). This is because the left ventricle must overcome a
lot of pressure and resistance from the arteries and contract forcefully in order to
pump blood out to the body.
OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
10. The thick, muscular middle layer of the heart wall that contains the
atrial and ventricular muscle fibers necessary for contraction is the .
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a. epicardium
b. pericardium
c. myocardium
d. endocardium
ANS: C
The myocardium (middle layer) is a thick, muscular layer that consists of cardiac
muscle fibers (cells) responsible for the pumping action of the heart.
OBJ: Describe the structure and function of the coverings of the heart.
11. Blood flows from the right atrium through the valve into the
right ventricle.
a. mitral
b. aortic
c. pulmonic
d. tricuspid
ANS: D
Blood flows from the right atrium through the tricuspid valve into the right
ventricle.
OBJ: Beginning with the right atrium, describe blood flow through the normal heart and lungs to
the systemic circulation.
12.Rapid ejection of blood from the ventricular chambers of the heart
occurs because the and valves open.
a. pulmonic; aortic
b. tricuspid; mitral
c. pulmonic; mitral
d. tricuspid; aortic
ANS: A
When the ventricles contract, the pulmonic and aortic valves open, allowing
blood to flow out of the ventricles.
OBJ: Name and identify the location of the atrioventricular (AV) and semilunar (SL) valves.
13. The base of the heart is found at approximately the level of the
rib(s).
a. first
b. second
c. fourth
d. fifth and sixth
ANS: B
The base of the heart is its upper portion and is formed mainly by the left atrium,
with a small amount of right atrium. It lies at approximately the level of the
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