Question 1

The QRS complex in an electrocardiogram results from

Accepted Answer

A)  depolarization of the ventricles 
B)  depolarization of the atria 
C)  repolarization of the ventricles 
D)  repolarization of the atria 
A)  depolarization of the ventricles 
B)  depolarization of the atria 
C)  repolarization of the ventricles 
D)  repolarization of the atria

Question 2

MATCHING
Match each term with its corresponding description or definition.
-the volume of blood ejected from the ventricles during each beat

Accepted Answer

A) visceral pericardium 
B) systole 
C) atria 
D) stroke volume 
E) diastole
F)cardiac output
G)ventricles
H)parietal pericardium
I)sinoatrial node
J)endocardium 
A) visceral pericardium 
B) systole 
C) atria 
D) stroke volume 
E) diastole
F)cardiac output
G)ventricles
H)parietal pericardium
I)sinoatrial node
J)endocardium

Question 3

Both electric shock and medication are used to treat fibrillation.

Accepted Answer

A) True 
 B)False

Question 4

The repolarization of the atria does not have a specific deflection on an electrocardiogram because the repolarization is hidden by the T wave of the ventricles.

Accepted Answer

A) True 
 B)False

Question 5

Briefly describe rheumatic heart disease and mitral valve prolapse.

Accepted Answer

Rheumatic heart disease is a condition t

Question 6

What is cardiac tamponade? How does it occur?

Accepted Answer

Cardiac tamponade is a medical emergency

Question 7

Match each structure in the heart with its corresponding description or function.
-valve that prevents blood from flowing back into the left atrium

Accepted Answer

A) right atrium 
B) left atrium 
C) right ventricle 
D) left ventricle 
E) aortic semilunar valve
F)pulmonary semilunar valve
G)tricuspid valve
H)mitral valve
I)aorta
J)pulmonary artery
K)pulmonary vein
L)superior vena cava 
A) right atrium 
B) left atrium 
C) right ventricle 
D) left ventricle 
E) aortic semilunar valve
F)pulmonary semilunar valve
G)tricuspid valve
H)mitral valve
I)aorta
J)pulmonary artery
K)pulmonary vein
L)superior vena cava

Question 8

The ventricles are the receiving chambers of the heart.

Accepted Answer

A) True 
 B)False

Question 9

Explain the conduction system of the heart.

Accepted Answer

The conduction system of the heart is a

Question 10

The first heart sound is caused by the closing of the _____ valve(s).

Accepted Answer

A)  mitral 
B)  semilunar 
C)  tricuspid 
D)  both A and C 
A)  mitral 
B)  semilunar 
C)  tricuspid 
D)  both A and C

Question 11

The QRS complex of an electrocardiogram occurs with the depolarization of the ventricles.

Accepted Answer

A) True 
 B)False

Question 12

The T wave of an electrocardiogram occurs with the depolarization of the atria.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following is not true of the pericardium?

Accepted Answer

A)  The parietal pericardium is also called the epicardium. 
B)  The pericardium is made up of two layers of fibrous tissue. 
C)  The fluid between the two layers of the pericardium helps reduce the friction caused by the beating heart. 
D)  All of the above are true of the pericardium. 
A)  The parietal pericardium is also called the epicardium. 
B)  The pericardium is made up of two layers of fibrous tissue. 
C)  The fluid between the two layers of the pericardium helps reduce the friction caused by the beating heart. 
D)  All of the above are true of the pericardium.

Question 14

A person with sinus dysrhythmia should be treated with an implanted artificial pacemaker.

Accepted Answer

A) True 
 B)False

Question 15

Like most arteries,the pulmonary arteries carry blood that is rich in oxygen.

Accepted Answer

A) True 
 B)False

Question 16

An incompetent mitral valve allows blood to flow back to the right atrium.

Accepted Answer

A) True 
 B)False

Question 17

If a heart murmur were discovered during the first heart sound,what heart valve may be defective? Explain your answer.

Accepted Answer

If a heart murmur were discovered during

Question 18

Blood passing through the tricuspid valve has just left which heart chamber?

Accepted Answer

A)  left atrium 
B)  left ventricle 
C)  right atrium 
D)  right ventricle 
A)  left atrium 
B)  left ventricle 
C)  right atrium 
D)  right ventricle

Question 19

Which structure is known as the "pacemaker" of the heart?

Accepted Answer

A)  Purkinje fibers 
B)  sinoatrial node 
C)  atrioventricular node 
D)  bundle of His 
A)  Purkinje fibers 
B)  sinoatrial node 
C)  atrioventricular node 
D)  bundle of His

Question 20

The heart is located in the mediastinum.

Accepted Answer

A) True 
 B)False

Exam 14: The Heart

The QRS complex in an electrocardiogram results from

MATCHING Match each term with its corresponding description or definition. -the volume of blood ejected from the ventricles during each beat

Both electric shock and medication are used to treat fibrillation.

The repolarization of the atria does not have a specific deflection on an electrocardiogram because the repolarization is hidden by the T wave of the ventricles.

Briefly describe rheumatic heart disease and mitral valve prolapse.

What is cardiac tamponade? How does it occur?

Match each structure in the heart with its corresponding description or function. -valve that prevents blood from flowing back into the left atrium

The ventricles are the receiving chambers of the heart.

Explain the conduction system of the heart.

The first heart sound is caused by the closing of the _____ valve(s).

The QRS complex of an electrocardiogram occurs with the depolarization of the ventricles.

The T wave of an electrocardiogram occurs with the depolarization of the atria.

Which of the following is not true of the pericardium?

A person with sinus dysrhythmia should be treated with an implanted artificial pacemaker.

Like most arteries,the pulmonary arteries carry blood that is rich in oxygen.

An incompetent mitral valve allows blood to flow back to the right atrium.

If a heart murmur were discovered during the first heart sound,what heart valve may be defective? Explain your answer.

Blood passing through the tricuspid valve has just left which heart chamber?

Which structure is known as the "pacemaker" of the heart?

The heart is located in the mediastinum.

An Introduction to the Structure and Function of the Body

Chemistry of Life

Cells

Tissues

Organ Systems of the Body

Mechanisms of Disease

The Integumentary System and Body Membranes

The Skeletal System

The Muscular System

The Nervous System

The Senses

The Endocrine System

Blood

The Circulation of the Blood

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Nutrition and Metabolism

The Urinary System

Fluid and Electrolyte Balance

Acid-Base Balance

The Reproductive Systems

Growth and Development

Genetics and Genetic Diseases

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