Question 1

The volume of blood pumped during each cardiac cycle is the

Accepted Answer

A)  stroke volume. 
B)  cardiac output. 
C)  cardiac reserve. 
D)  end-systolic volume. 
E)  end-diastolic volume. 
A)  stroke volume. 
B)  cardiac output. 
C)  cardiac reserve. 
D)  end-systolic volume. 
E)  end-diastolic volume.

Question 2

Blood in the superior vena cava will enter the ________.

Accepted Answer

A)  aorta 
B)  right atrium 
C)  pulmonary trunk 
D)  pulmonary arteries 
E)  pulmonary veins 
A)  aorta 
B)  right atrium 
C)  pulmonary trunk 
D)  pulmonary arteries 
E)  pulmonary veins

Question 3

What occurs during the time between the first heart sound and the second heart sound?

Accepted Answer

A)  Ventricular systole 
B)  Ventricular diastole 
C)  Ventricular filling 
D)  Atrial systole 
E)  The P wave of the ECG 
A)  Ventricular systole 
B)  Ventricular diastole 
C)  Ventricular filling 
D)  Atrial systole 
E)  The P wave of the ECG

Question 4

Afterload is

Accepted Answer

A)  the name given to an increase in end-diastolic volume. 
B)  the arterial pressure that the ventricles must overcome to eject blood. 
C)  the amount cardiac output must increase during exercise. 
D)  another name for venous return. 
E)  the extent to which ventricular walls are stretched. 
A)  the name given to an increase in end-diastolic volume. 
B)  the arterial pressure that the ventricles must overcome to eject blood. 
C)  the amount cardiac output must increase during exercise. 
D)  another name for venous return. 
E)  the extent to which ventricular walls are stretched.

Question 5

Where is blood moving during the period of ejection?

Accepted Answer

A)  Ventricles to atria 
B)  Ventricles to great vessels 
C)  Atria to ventricles 
D)  Atria to great vessels 
E)  Great vessels to ventricles 
A)  Ventricles to atria 
B)  Ventricles to great vessels 
C)  Atria to ventricles 
D)  Atria to great vessels 
E)  Great vessels to ventricles

Question 6

Which of the following is NOT a function of the heart?

Accepted Answer

A)  Providing a location for gas exchange between oxygen and carbon dioxide 
B)  Regulating blood supply to tissues depending on need 
C)  Generating blood pressure through contraction 
D)  Routing blood to either the pulmonary circulation or the systemic circulation 
A)  Providing a location for gas exchange between oxygen and carbon dioxide 
B)  Regulating blood supply to tissues depending on need 
C)  Generating blood pressure through contraction 
D)  Routing blood to either the pulmonary circulation or the systemic circulation

Question 7

Contraction of the ventricles is referred to as ventricular ________.

Accepted Answer

A)  systole 
B)  diastole 
C)  fibrillation 
D)  ischemia 
E)  depolarization 
A)  systole 
B)  diastole 
C)  fibrillation 
D)  ischemia 
E)  depolarization

Question 8

Atrial systole begins ________.

Accepted Answer

A)  immediately before the P wave 
B)  immediately after the P wave 
C)  during the Q wave 
D)  during the S-T segment 
E)  immediately after the T wave 
A)  immediately before the P wave 
B)  immediately after the P wave 
C)  during the Q wave 
D)  during the S-T segment 
E)  immediately after the T wave

Question 9

Baroreceptor reflexes

Accepted Answer

A)  are triggered by increased blood osmolality. 
B)  correct changes in blood pH. 
C)  do not impact the activity of the heart. 
D)  are of minor importance in humans. 
E)  can change heart rate. 
A)  are triggered by increased blood osmolality. 
B)  correct changes in blood pH. 
C)  do not impact the activity of the heart. 
D)  are of minor importance in humans. 
E)  can change heart rate.

Question 10

The procedure whereby a small balloon is placed into a partially occluded coronary artery and then inflated to increase blood flow through the artery is called a/an ________.

Accepted Answer

A)  angioplasty 
B)  coronary bypass 
C)  urokinase injection 
D)  tissue plasminogen activation 
E)  angiogram 
A)  angioplasty 
B)  coronary bypass 
C)  urokinase injection 
D)  tissue plasminogen activation 
E)  angiogram

Question 11

All of the following cardiac measurements will increase during exercise except ________.

Accepted Answer

A)  end-diastolic volume 
B)  end-systolic volume 
C)  stroke volume 
D)  cardiac output 
A)  end-diastolic volume 
B)  end-systolic volume 
C)  stroke volume 
D)  cardiac output

Question 12

Of the types of damage resulting from a myocardial infarction, which is most likely to cause the greatest increase in the Q-T interval?

Accepted Answer

A)  Infarction in the AV node 
B)  Left bundle branch block 
C)  Infarction affecting the SA node 
D)  Tachycardia 
E)  Ectopic focus 
A)  Infarction in the AV node 
B)  Left bundle branch block 
C)  Infarction affecting the SA node 
D)  Tachycardia 
E)  Ectopic focus

Question 13

Blood in the pulmonary veins returns to the

Accepted Answer

A)  right atrium. 
B)  left atrium. 
C)  right ventricle. 
D)  left ventricle. 
E)  coronary sinus. 
A)  right atrium. 
B)  left atrium. 
C)  right ventricle. 
D)  left ventricle. 
E)  coronary sinus.

Question 14

When ventricular pressure exceeds atrial pressure, the

Accepted Answer

A)  ejection occurs. 
B)  atria pump blood into the ventricles. 
C)  ventricle is in diastole. 
D)  blood is pumped into the atrium. 
E)  AV valves close. 
A)  ejection occurs. 
B)  atria pump blood into the ventricles. 
C)  ventricle is in diastole. 
D)  blood is pumped into the atrium. 
E)  AV valves close.

Question 15

Which of the following statements accurately describes the pattern of ventricular contraction?

Accepted Answer

A)  The ventricles contract from the base toward the apex moving blood into the great arteries located inferior to the ventricles. 
B)  The ventricles contract from the apex toward the base moving blood into the great arteries located inferior to the ventricles. 
C)  The ventricles contract from the apex toward the base moving blood into the great arteries located superior to the ventricles. 
D)  The ventricles contract from the base toward the apex moving blood into the great arteries located superior to the ventricles. 
A)  The ventricles contract from the base toward the apex moving blood into the great arteries located inferior to the ventricles. 
B)  The ventricles contract from the apex toward the base moving blood into the great arteries located inferior to the ventricles. 
C)  The ventricles contract from the apex toward the base moving blood into the great arteries located superior to the ventricles. 
D)  The ventricles contract from the base toward the apex moving blood into the great arteries located superior to the ventricles.

Question 16

What must occur during exercise to ensure adequate oxygen delivery to cardiac muscle?

Accepted Answer

A)  An increased oxygen release to cardiac muscle 
B)  A decreased oxygen content to skeletal muscle 
C)  Decreased heart rate 
D)  Increased coronary blood flow 
A)  An increased oxygen release to cardiac muscle 
B)  A decreased oxygen content to skeletal muscle 
C)  Decreased heart rate 
D)  Increased coronary blood flow

Question 17

The valve located between the right ventricle and the pulmonary trunk is the

Accepted Answer

A)  aortic semilunar valve. 
B)  pulmonary semilunar valve. 
C)  tricuspid valve. 
D)  mitral valve. 
E)  bicuspid valve. 
A)  aortic semilunar valve. 
B)  pulmonary semilunar valve. 
C)  tricuspid valve. 
D)  mitral valve. 
E)  bicuspid valve.

Question 18

Mitral valve prolapse causes blood to leak back into the ________ when the ventricles contract.

Accepted Answer

A)  left atrium 
B)  right atrium 
C)  aorta 
D)  pulmonary trunk 
E)  pulmonary arteries 
A)  left atrium 
B)  right atrium 
C)  aorta 
D)  pulmonary trunk 
E)  pulmonary arteries

Question 19

What event(s) occur during the QRS complex of an electrocardiogram?

Accepted Answer

A)  Depolarization of the atria 
B)  Repolarization of the ventricles 
C)  Depolarization of the atria and repolarization of the ventricles 
D)  Depolarization of the ventricles and repolarization of the atria 
A)  Depolarization of the atria 
B)  Repolarization of the ventricles 
C)  Depolarization of the atria and repolarization of the ventricles 
D)  Depolarization of the ventricles and repolarization of the atria

Question 20

Which of the following factors would cause an increase in heart rate?

Accepted Answer

A)  Increased parasympathetic stimulation 
B)  Stimulation of baroreceptors in the aorta 
C)  Increased epinephrine release from the adrenal medulla 
D)  Increased production of atrial natriuretic factor 
E)  Stimulation through the vagus nerve 
A)  Increased parasympathetic stimulation 
B)  Stimulation of baroreceptors in the aorta 
C)  Increased epinephrine release from the adrenal medulla 
D)  Increased production of atrial natriuretic factor 
E)  Stimulation through the vagus nerve

Exam 20: Cardiovascular System: the Heart

The volume of blood pumped during each cardiac cycle is the

Blood in the superior vena cava will enter the ________.

What occurs during the time between the first heart sound and the second heart sound?

Afterload is

Where is blood moving during the period of ejection?

Which of the following is NOT a function of the heart?

Contraction of the ventricles is referred to as ventricular ________.

Atrial systole begins ________.

Baroreceptor reflexes

The procedure whereby a small balloon is placed into a partially occluded coronary artery and then inflated to increase blood flow through the artery is called a/an ________.

All of the following cardiac measurements will increase during exercise except ________.

Of the types of damage resulting from a myocardial infarction, which is most likely to cause the greatest increase in the Q-T interval?

Blood in the pulmonary veins returns to the

When ventricular pressure exceeds atrial pressure, the

Which of the following statements accurately describes the pattern of ventricular contraction?

What must occur during exercise to ensure adequate oxygen delivery to cardiac muscle?

The valve located between the right ventricle and the pulmonary trunk is the

Mitral valve prolapse causes blood to leak back into the ________ when the ventricles contract.

What event(s) occur during the QRS complex of an electrocardiogram?

Which of the following factors would cause an increase in heart rate?

The Human Organism

The Chemical Basis of Life

Cell Biology

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joint and Movement

Muscular System: Histology and Physiology

Muscular System: Gross Anatomy

Functional Organization of Nervous Tissue

Spinal Cord and Spinal Nerves

Brain and Cranial Nerves

Integration of Nervous System Functions

The Special Senses

Autonomic Nervous System

Functional Organization of the Endocrine System

Endocrine Glands

Cardiovascular System: Blood

Cardiovascular System: Blood Vessels and Circulation

Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition, Metabolism, and Temperature Regulation

Urinary System

Water, Electrolyte, and Acid-Base Balance

Reproductive System

Development, Growth, Aging, and Genetics

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