Question 1

The cardiac conduction pathway consists of:

Accepted Answer

A) specialized cardiac muscle cells within the heart 
B) nerve cell pathways within the heart 
C) both A and B 
D) both A and B,and the skeleton of the heart 
A) specialized cardiac muscle cells within the heart 
B) nerve cell pathways within the heart 
C) both A and B 
D) both A and B,and the skeleton of the heart

Question 2

Stroke volume is the amount of blood pumped by a ventricle in:

Accepted Answer

A) one beat 
B) one minute 
C) one hour 
D) one day 
A) one beat 
B) one minute 
C) one hour 
D) one day

Question 3

In the cardiac cycle,which statement is true of blood flow from the ventricles to the arteries?

Accepted Answer

A) All blood flows passively. 
B) Most blood flows passively. 
C) Most blood is actively pumped. 
D) All blood is actively pumped. 
A) All blood flows passively. 
B) Most blood flows passively. 
C) Most blood is actively pumped. 
D) All blood is actively pumped.

Question 4

The pulmonary artery takes blood from the:

Accepted Answer

A) left ventricle to the lungs 
B) left ventricle to the body 
C) right ventricle to the lungs 
D) right ventricle to the body 
A) left ventricle to the lungs 
B) left ventricle to the body 
C) right ventricle to the lungs 
D) right ventricle to the body

Question 5

Within the chambers of the heart,clotting is prevented by the:

Accepted Answer

A) smooth endocardium 
B) smooth epicardium 
C) smooth myocardium 
D) smooth pericardium 
A) smooth endocardium 
B) smooth epicardium 
C) smooth myocardium 
D) smooth pericardium

Question 6

The cardiac inhibitory center uses these nerves:

Accepted Answer

A) vagus 
B) sympathetic 
C) phrenic 
D) all of these,depending on the situation 
A) vagus 
B) sympathetic 
C) phrenic 
D) all of these,depending on the situation

Question 7

The right and left AV valves prevent backflow of blood from the:

Accepted Answer

A) ventricles to the atria when the ventricles relax 
B) arteries to the ventricles when the ventricles contract 
C) ventricles to the atria when the ventricles contract 
D) arteries to the ventricles when the ventricles relax 
A) ventricles to the atria when the ventricles relax 
B) arteries to the ventricles when the ventricles contract 
C) ventricles to the atria when the ventricles contract 
D) arteries to the ventricles when the ventricles relax

Question 8

The name for the muscular walls of the chambers of the heart is:

Accepted Answer

A) mesocardium 
B) myocardium 
C) epicardium 
D) endocardium 
A) mesocardium 
B) myocardium 
C) epicardium 
D) endocardium

Question 9

Exercise cardiac output is 9900 mL.What are the pulse and stroke volume?

Accepted Answer

A) 110 bpm and 90 mL 
B) 100 bpm and 90 mL 
C) 105 bpm and 90 mL 
D) 112 bpm and 95 mL 
A) 110 bpm and 90 mL 
B) 100 bpm and 90 mL 
C) 105 bpm and 90 mL 
D) 112 bpm and 95 mL

Question 10

The fibrous skeleton of the heart:

Accepted Answer

A) separates the atria and the ventricles 
B) anchors the outer edges of the valves of the heart 
C) both A and B 
D) both A and B,and it is made of bone. 
A) separates the atria and the ventricles 
B) anchors the outer edges of the valves of the heart 
C) both A and B 
D) both A and B,and it is made of bone.

Question 11

Chemoreceptors that detect changes in blood oxygen levels are located in the:

Accepted Answer

A) aortic and carotid bodies 
B) carotid and basal bodies 
C) basal and ventricular bodies 
D) ventricular and aortic bodies 
A) aortic and carotid bodies 
B) carotid and basal bodies 
C) basal and ventricular bodies 
D) ventricular and aortic bodies

Question 12

The parts of the cardiac conduction pathway that bring about contraction of the ventricles are the:

Accepted Answer

A) AV node,Purkinje fibers,and bundle branches 
B) bundle of His,SA node,and AV node 
C) AV node,bundle branches,and SA node 
D) bundle of His,bundle branches,and Purkinje fibers 
A) AV node,Purkinje fibers,and bundle branches 
B) bundle of His,SA node,and AV node 
C) AV node,bundle branches,and SA node 
D) bundle of His,bundle branches,and Purkinje fibers

Question 13

The function of atrial natriuretic peptide (ANP)is to:

Accepted Answer

A) decrease sodium and water excretion by the large intestine 
B) increase sodium and water excretion by the kidneys 
C) increase sodium and water excretion by the large intestine 
D) decrease sodium and water excretion by the kidneys 
A) decrease sodium and water excretion by the large intestine 
B) increase sodium and water excretion by the kidneys 
C) increase sodium and water excretion by the large intestine 
D) decrease sodium and water excretion by the kidneys

Question 14

In the cardiac cycle,which statement is true of blood flow from the atria to the ventricles?

Accepted Answer

A) All blood flows passively. 
B) Most blood flows passively. 
C) Most blood is actively pumped. 
D) All blood is actively pumped. 
A) All blood flows passively. 
B) Most blood flows passively. 
C) Most blood is actively pumped. 
D) All blood is actively pumped.

Question 15

Resting cardiac output is 5440 mL.What are the pulse and stroke volume?

Accepted Answer

A) 70 bpm and 70 mL 
B) 74 bpm and 66 mL 
C) 76 bpm and 75 mL 
D) 80 bpm and 68 mL 
A) 70 bpm and 70 mL 
B) 74 bpm and 66 mL 
C) 76 bpm and 75 mL 
D) 80 bpm and 68 mL

Question 16

During strenuous exercise,cardiac output is 16,000 mL and stroke volume is 110 mL.What is the pulse?

Accepted Answer

A) 135 bpm 
B) 145 bpm 
C) 155 bpm 
D) 105 bpm 
A) 135 bpm 
B) 145 bpm 
C) 155 bpm 
D) 105 bpm

Question 17

If cardiac output is 6000 mL and pulse is 80 bpm,what is stroke volume?

Accepted Answer

A) 65 mL 
B) 70 mL 
C) 75 mL 
D) 80 mL 
A) 65 mL 
B) 70 mL 
C) 75 mL 
D) 80 mL

Question 18

If stroke volume is 70 mL and pulse is 74 bpm,what is cardiac output?

Accepted Answer

A) 5000 mL 
B) 5180 mL 
C) 5260 mL 
D) 5280 mL 
A) 5000 mL 
B) 5180 mL 
C) 5260 mL 
D) 5280 mL

Question 19

The name for the lining of the chambers of the heart is:

Accepted Answer

A) mesocardium 
B) myocardium 
C) epicardium 
D) endocardium 
A) mesocardium 
B) myocardium 
C) epicardium 
D) endocardium

Question 20

The term for relaxation of the chambers of the heart is:

Accepted Answer

A) blood pressure 
B) diastole 
C) systole 
D) hypotension 
A) blood pressure 
B) diastole 
C) systole 
D) hypotension

Exam 13:The Heart-Part C

The cardiac conduction pathway consists of:

Stroke volume is the amount of blood pumped by a ventricle in:

In the cardiac cycle,which statement is true of blood flow from the ventricles to the arteries?

The pulmonary artery takes blood from the:

Within the chambers of the heart,clotting is prevented by the:

The cardiac inhibitory center uses these nerves:

The right and left AV valves prevent backflow of blood from the:

The name for the muscular walls of the chambers of the heart is:

Exercise cardiac output is 9900 mL.What are the pulse and stroke volume?

The fibrous skeleton of the heart:

Chemoreceptors that detect changes in blood oxygen levels are located in the:

The parts of the cardiac conduction pathway that bring about contraction of the ventricles are the:

The function of atrial natriuretic peptide (ANP)is to:

In the cardiac cycle,which statement is true of blood flow from the atria to the ventricles?

Resting cardiac output is 5440 mL.What are the pulse and stroke volume?

During strenuous exercise,cardiac output is 16,000 mL and stroke volume is 110 mL.What is the pulse?

If cardiac output is 6000 mL and pulse is 80 bpm,what is stroke volume?

If stroke volume is 70 mL and pulse is 74 bpm,what is cardiac output?

The name for the lining of the chambers of the heart is:

The term for relaxation of the chambers of the heart is:

Organization and General Plan of the Body-Part A

Organization and General Plan of the Body-Part B

Organization and General Plan of the Body-Part C

Some Basic Chemistry-Part A

Some Basic Chemistry-Part B

Some Basic Chemistry-Part C

Cells-Part A

Cells-Part B

Cells-Part C

Tissues and Membranes-Part A

Tissues and Membranes-Part B

Tissues and Membranes-Part C

The Integumentary System-Part A

The Integumentary System-Part B

The Integumentary System-Part C

The Skeletal System-Part A

The Skeletal System-Part B

The Skeletal System-Part C

The Muscular System-Part A

The Muscular System-Part B

The Muscular System-Part C

The Nervous System-Part A

The Nervous System-Part B

The Nervous System-Part C

The Senses-Part A

The Senses-Part B

The Senses-Part C

The Endocrine System-Part A

The Endocrine System-Part B

The Endocrine System-Part C

Blood-Part A

Blood-Part B

Blood-Part C

The Heart-Part A

The Heart-Part B

The Vascular System-Part A

The Vascular System-Part B

The Vascular System-Part C

The Lymphatic System and Immunity-Part A

The Lymphatic System and Immunity-Part B

The Lymphatic System and Immunity-Part C

The Respiratory System-Part A

The Respiratory System-Part B

The Respiratory System-Part C

The Digestive System-Part A

The Digestive System-Part B

The Digestive System-Part C

Body Temperature and Metabolism-Part A

Body Temperature and Metabolism-Part B

Body Temperature and Metabolism-Part C

The Urinary System-Part A

The Urinary System-Part B

The Urinary System-Part C

Fluid–Electrolyte and Acid–Base Balance-Part A

Fluid–Electrolyte and Acid–Base Balance-Part B

Fluid–Electrolyte and Acid–Base Balance-Part C

The Reproductive Systems-Part A

The Reproductive Systems-Part B

The Reproductive Systems-Part C