Question 1

Which type of blood vessel serves as a blood reservoir?

Accepted Answer

A)  Arteries 
B)  Arterioles 
C)  Capillaries 
D)  Veins 
E)  Venules 
A)  Arteries 
B)  Arterioles 
C)  Capillaries 
D)  Veins 
E)  Venules

Question 2

The density of capillaries within a tissue is proportional to the tissue's __________.

Accepted Answer

A)  thickness 
B)  fluid content 
C)  type of matrix 
D)  rate of metabolism 
E)  surface area 
A)  thickness 
B)  fluid content 
C)  type of matrix 
D)  rate of metabolism 
E)  surface area

Question 3

Blood that passes into the right ventricle has passed through the __________ valve.

Accepted Answer

A)  mitral 
B)  tricuspid 
C)  pulmonary 
D)  aortic 
A)  mitral 
B)  tricuspid 
C)  pulmonary 
D)  aortic

Question 4

What is the function of the pulmonary circuit?

Accepted Answer

A)  Sends oxygen-poor blood to the heart 
B)  Brings oxygen-poor blood from the tissues 
C)  Sends oxygen-poor blood to the lungs 
D)  Brings oxygen-rich blood to the tissues 
A)  Sends oxygen-poor blood to the heart 
B)  Brings oxygen-poor blood from the tissues 
C)  Sends oxygen-poor blood to the lungs 
D)  Brings oxygen-rich blood to the tissues

Question 5

What effect does an excess of calcium have on the heart?

Accepted Answer

A)  No effect 
B)  Increases heart action 
C)  Decreases heart action 
D)  Decreases heart rate but prolongs contractions 
A)  No effect 
B)  Increases heart action 
C)  Decreases heart action 
D)  Decreases heart rate but prolongs contractions

Question 6

How do respiratory movements and skeletal muscle contraction affect circulation?

Accepted Answer

A)  They are synergistic because both assist circulation by squeezing and "pumping" venous blood. 
B)  They are antagonistic forces because skeletal muscles assist venous blood movement, but respiratory activity inhibits venous movement. 
C)  Both synergistically lower blood pressure by enhancing vasodilation, which directly stimulates the cardiac regulatory center. 
D)  Both synergistically increase blood pressure by stimulating the sympathetic nervous system to vasodilate arteries. 
A)  They are synergistic because both assist circulation by squeezing and "pumping" venous blood. 
B)  They are antagonistic forces because skeletal muscles assist venous blood movement, but respiratory activity inhibits venous movement. 
C)  Both synergistically lower blood pressure by enhancing vasodilation, which directly stimulates the cardiac regulatory center. 
D)  Both synergistically increase blood pressure by stimulating the sympathetic nervous system to vasodilate arteries.

Question 7

When the ventricles relax, blood pressure drops to a minimum value known as the systolic pressure.

Accepted Answer

A) True 
 B)False

Question 8

What is the correct sequence of structures of the cardiac conduction system?

Accepted Answer

A)  AV node, SA node, Purkinje fibers, AV bundle 
B)  AV node, AV bundle, Purkinje fibers, SA node 
C)  SA node, Purkinje fibers, AV node, AV bundle 
D)  SA node, AV node, AV bundle, Purkinje fibers 
E)  Purkinje fibers, SA node, AV node, AV bundle 
A)  AV node, SA node, Purkinje fibers, AV bundle 
B)  AV node, AV bundle, Purkinje fibers, SA node 
C)  SA node, Purkinje fibers, AV node, AV bundle 
D)  SA node, AV node, AV bundle, Purkinje fibers 
E)  Purkinje fibers, SA node, AV node, AV bundle

Question 9

During what phase of the cardiac cycle is blood pressure in the systemic arteries the greatest?

Accepted Answer

A)  During atrial systole 
B)  During ventricular systole 
C)  During ventricular diastole 
D)  During arterial diastole 
E)  During atrial diastole 
A)  During atrial systole 
B)  During ventricular systole 
C)  During ventricular diastole 
D)  During arterial diastole 
E)  During atrial diastole

Question 10

In an ECG pattern, what event is represented by the P wave?

Accepted Answer

A)  Repolarization of the atrial muscle fibers 
B)  Repolarization of the ventricular muscle fibers 
C)  Depolarization of atrial muscle fibers 
D)  Depolarization of ventricular muscle fibers 
A)  Repolarization of the atrial muscle fibers 
B)  Repolarization of the ventricular muscle fibers 
C)  Depolarization of atrial muscle fibers 
D)  Depolarization of ventricular muscle fibers

Question 11

Blood from the coronary sinus empties into the right atrium.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following is not a branch of the aorta?

Accepted Answer

A)  Right coronary artery 
B)  Pulmonary artery 
C)  Brachiocephalic artery 
D)  Left subclavian artery 
E)  Celiac artery 
A)  Right coronary artery 
B)  Pulmonary artery 
C)  Brachiocephalic artery 
D)  Left subclavian artery 
E)  Celiac artery

Question 13

The oxygen-rich vessels that supply the heart muscle with blood are the cardiac veins.

Accepted Answer

A) True 
 B)False

Question 14

The outermost membrane that forms a loose-fitting sac around the heart is the __________.

Accepted Answer

A)  fibrous pericardium 
B)  epicardium 
C)  endocardium 
D)  visceral pericardium 
E)  myocardium 
A)  fibrous pericardium 
B)  epicardium 
C)  endocardium 
D)  visceral pericardium 
E)  myocardium

Question 15

What happens to the valves when the ventricular walls relax?

Accepted Answer

A)  Bicuspid valve opens and the tricuspid valve closes. 
B)  Tricuspid valve opens and the bicuspid valve closes. 
C)  Bicuspid and tricuspid valves close. 
D)  Bicuspid and tricuspid valves open. 
E)  Aortic and pulmonic valves open. 
A)  Bicuspid valve opens and the tricuspid valve closes. 
B)  Tricuspid valve opens and the bicuspid valve closes. 
C)  Bicuspid and tricuspid valves close. 
D)  Bicuspid and tricuspid valves open. 
E)  Aortic and pulmonic valves open.

Question 16

The volume of blood discharged from the ventricle in a minute is called __________.

Accepted Answer

A)  cardiac output 
B)  stroke volume 
C)  cardiac cycle 
D)  minute cardiac volume 
A)  cardiac output 
B)  stroke volume 
C)  cardiac cycle 
D)  minute cardiac volume

Question 17

Capillary walls are only one cell layer thick.

Accepted Answer

A) True 
 B)False

Question 18

In normal circulation, blood flow usually follows what pattern of vessels?

Accepted Answer

A)  Artery, arteriole, capillary, venule, vein 
B)  Artery, vein, capillary, venule, arteriole 
C)  Artery, capillary, vein, arteriole, venule 
D)  Vein, venule, capillary, arteriole, artery 
E)  Venule, vein, capillary, artery, arteriole 
A)  Artery, arteriole, capillary, venule, vein 
B)  Artery, vein, capillary, venule, arteriole 
C)  Artery, capillary, vein, arteriole, venule 
D)  Vein, venule, capillary, arteriole, artery 
E)  Venule, vein, capillary, artery, arteriole

Question 19

The blood vessels whose walls are thin enough to allow exchange of gases between the blood and tissue fluid are __________.

Accepted Answer

The answer of The blood vessels whose walls are thin...

Question 20

What valve separates the left atrium from the left ventricle?

Accepted Answer

A)  Mitral valve 
B)  Tricuspid valve 
C)  Pulmonary valve 
D)  Aortic valve 
A)  Mitral valve 
B)  Tricuspid valve 
C)  Pulmonary valve 
D)  Aortic valve

Which type of blood vessel serves as a blood reservoir?

The density of capillaries within a tissue is proportional to the tissue's __________.

Blood that passes into the right ventricle has passed through the __________ valve.

What is the function of the pulmonary circuit?

What effect does an excess of calcium have on the heart?

How do respiratory movements and skeletal muscle contraction affect circulation?

When the ventricles relax, blood pressure drops to a minimum value known as the systolic pressure.

What is the correct sequence of structures of the cardiac conduction system?

During what phase of the cardiac cycle is blood pressure in the systemic arteries the greatest?

In an ECG pattern, what event is represented by the P wave?

Blood from the coronary sinus empties into the right atrium.

Which of the following is not a branch of the aorta?

The oxygen-rich vessels that supply the heart muscle with blood are the cardiac veins.

The outermost membrane that forms a loose-fitting sac around the heart is the __________.

What happens to the valves when the ventricular walls relax?

The volume of blood discharged from the ventricle in a minute is called __________.

Capillary walls are only one cell layer thick.

In normal circulation, blood flow usually follows what pattern of vessels?

The blood vessels whose walls are thin enough to allow exchange of gases between the blood and tissue fluid are __________.

What valve separates the left atrium from the left ventricle?

Introduction to Human Anatomy and Physiology

Chemical Basis of Life

Cells

Cellular Metabolism

Tissues

Integumentary System

Skeletal System

Muscular System

Pregnancy, Growth, Development, and Genetics

Nervous System

The Senses

Endocrine System

Blood

Lymphatic System and Immunity

Digestion and Nutrition

Respiratory System

Urinary System

Water, Electrolyte, and Acid-Base Balance

Reproductive Systems

Filters

Exam 13: Cardiovascular System

Which type of blood vessel serves as a blood reservoir?

The density of capillaries within a tissue is proportional to the tissue's __________.

Blood that passes into the right ventricle has passed through the __________ valve.

What is the function of the pulmonary circuit?

What effect does an excess of calcium have on the heart?

How do respiratory movements and skeletal muscle contraction affect circulation?

When the ventricles relax, blood pressure drops to a minimum value known as the systolic pressure.

What is the correct sequence of structures of the cardiac conduction system?

During what phase of the cardiac cycle is blood pressure in the systemic arteries the greatest?

In an ECG pattern, what event is represented by the P wave?

Blood from the coronary sinus empties into the right atrium.

Which of the following is not a branch of the aorta?

The oxygen-rich vessels that supply the heart muscle with blood are the cardiac veins.

The outermost membrane that forms a loose-fitting sac around the heart is the __________.

What happens to the valves when the ventricular walls relax?

The volume of blood discharged from the ventricle in a minute is called __________.

Capillary walls are only one cell layer thick.

In normal circulation, blood flow usually follows what pattern of vessels?

The blood vessels whose walls are thin enough to allow exchange of gases between the blood and tissue fluid are __________.

What valve separates the left atrium from the left ventricle?

Introduction to Human Anatomy and Physiology

Chemical Basis of Life

Cells

Cellular Metabolism

Tissues

Integumentary System

Skeletal System

Muscular System

Pregnancy, Growth, Development, and Genetics

Nervous System

The Senses

Endocrine System

Blood

Lymphatic System and Immunity

Digestion and Nutrition

Respiratory System

Urinary System

Water, Electrolyte, and Acid-Base Balance

Reproductive Systems

Filters