Question 1

-Label C represents the

Accepted Answer

A) tricuspid valve. 
B) pulmonary (semilunar)valve. 
C) aortic (semilunar)valve. 
D) bicuspid valve. 
E) left atrioventricular valve. 
A) tricuspid valve. 
B) pulmonary (semilunar)valve. 
C) aortic (semilunar)valve. 
D) bicuspid valve. 
E) left atrioventricular valve. B

Question 2

The tricuspid valve is located

Accepted Answer

A) in the opening of the aorta. 
B) in the opening of the pulmonary trunk. 
C) where the vena cavae join the right atrium. 
D) between the right atrium and right ventricle. 
E) between the left atrium and left ventricle. 
A) in the opening of the aorta. 
B) in the opening of the pulmonary trunk. 
C) where the vena cavae join the right atrium. 
D) between the right atrium and right ventricle. 
E) between the left atrium and left ventricle. D

Question 3

The QRS complex on an ECG tracing represents

Accepted Answer

A) atrial depolarization. 
B) atrial repolarization. 
C) ventricular depolarization. 
D) ventricular repolarization. 
E) ventricular contraction. 
A) atrial depolarization. 
B) atrial repolarization. 
C) ventricular depolarization. 
D) ventricular repolarization. 
E) ventricular contraction. C

Question 4

When the heart rate and stroke volume in a normal heart increase together,the cardiac output can increase by ________ percent.

Accepted Answer

A) 50-70 
B) 100-350 
C) 150-250 
D) 250-500 
E) 500-700 
A) 50-70 
B) 100-350 
C) 150-250 
D) 250-500 
E) 500-700

Question 5

The following is a list of vessels and structures that are associated with the heart. 1.right atrium
2.left atrium
3.right ventricle
4.left ventricle
5.vena cavae
6.aorta
7.pulmonary trunk
8.pulmonary veins
What is the correct order for the flow of blood entering from the systemic circulation?

Accepted Answer

A) 1,2,7,8,3,4,6,5 
B) 1,7,3,8,2,4,6,5 
C) 5,1,3,7,8,2,4,6 
D) 5,3,1,7,8,4,2,6 
E) 5,1,3,8,7,2,4,6 
A) 1,2,7,8,3,4,6,5 
B) 1,7,3,8,2,4,6,5 
C) 5,1,3,7,8,2,4,6 
D) 5,3,1,7,8,4,2,6 
E) 5,1,3,8,7,2,4,6

Question 6

Which of the following indicates the start of the systemic circuit?

Accepted Answer

A) pulmonary trunk 
B) pulmonary arteries 
C) vena cavae 
D) ascending aorta 
E) cardiac veins 
A) pulmonary trunk 
B) pulmonary arteries 
C) vena cavae 
D) ascending aorta 
E) cardiac veins

Question 7

Which structural feature of the heart is a deep groove,usually filled with substantial amounts of fat,marking the border between the atria and the ventricles?

Accepted Answer

A) posterior interventricular sulcus 
B) coronary sulcus 
C) anterior interventricular sulcus 
D) coronary sinus 
E) interventricular septum 
A) posterior interventricular sulcus 
B) coronary sulcus 
C) anterior interventricular sulcus 
D) coronary sinus 
E) interventricular septum

Question 8

Which of the following is greatest during left ventricular systole?

Accepted Answer

A) the pressure in the ventricle 
B) the pressure in the aorta 
C) the pressure in the left atrium 
D) the pressure in the arteries 
E) the pressure in the right atrium 
A) the pressure in the ventricle 
B) the pressure in the aorta 
C) the pressure in the left atrium 
D) the pressure in the arteries 
E) the pressure in the right atrium

Question 9

Which statement regarding autonomic innervation of the heart is correct?

Accepted Answer

A) The release of norepinephrine (N
E) and epinephrine (
E) by the adrenal medulla decreases the force and degree of contraction. 
B) Norepinephrine released by sympathetic neurons increases the heart rate. 
C) Acetylcholine released by parasympathetic neurons results in increased heart rate. 
D) Parasympathetic release of norepinephrine at synapses in the myocardium result in an increase in stroke volume. 
E) Acetylcholine released by sympathetic neurons result in an increase in the force of cardiac contractions. 
A) The release of norepinephrine (N
E) and epinephrine (
E) by the adrenal medulla decreases the force and degree of contraction. 
B) Norepinephrine released by sympathetic neurons increases the heart rate. 
C) Acetylcholine released by parasympathetic neurons results in increased heart rate. 
D) Parasympathetic release of norepinephrine at synapses in the myocardium result in an increase in stroke volume. 
E) Acetylcholine released by sympathetic neurons result in an increase in the force of cardiac contractions.

Question 10

-Label N represents the

Accepted Answer

A) trabeculae carneae. 
B) chordae tendineae. 
C) auricle. 
D) papillary muscle. 
E) pectinate muscle. 
A) trabeculae carneae. 
B) chordae tendineae. 
C) auricle. 
D) papillary muscle. 
E) pectinate muscle.

Question 11

The great and middle cardiac veins drain blood directly into the

Accepted Answer

A) superior vena cava. 
B) inferior vena cava. 
C) coronary sinus. 
D) coronary sulcus. 
E) aorta. 
A) superior vena cava. 
B) inferior vena cava. 
C) coronary sinus. 
D) coronary sulcus. 
E) aorta.

Question 12

Following are events that occur during the cardiac cycle. 1.Ventricular pressure increases and exceeds pressure in the arteries.
2.Ventricles fill passively.
3.Atrial relaxation begins.
4.Atrial contraction forces a small amount of additional blood into relaxed ventricles.
5.Pressure in ventricles drops and blood flows back against cusps of semilunar valves,forcing them closed.
6.Ventricular contraction pushes AV valves closed.
Choose the correct order of events in the cardiac cycle.

Accepted Answer

A) 4,6,3,1,2,5 
B) 2,6,1,4,3,5 
C) 3,6,1,5,4,2 
D) 2,5,1,6,3,4 
E) 4,3,6,1,5,2 
A) 4,6,3,1,2,5 
B) 2,6,1,4,3,5 
C) 3,6,1,5,4,2 
D) 2,5,1,6,3,4 
E) 4,3,6,1,5,2

Question 13

Which statement is correct regarding the heart wall?

Accepted Answer

A) The endothelium consists of cardiac muscle tissue,blood vessels,and nerves. 
B) The myocardium is comprised of a simple squamous epithelium and an underlying layer of areolar tissue. 
C) The endocardium is the visceral pericardium. 
D) The cardiac muscle tissue forms bands that wrap around the ventricles and spiral into the wall of the atria. 
E) The epicardium is a serous membrane that consists of an exposed epithelium and an underlying layer of areolar tissue. 
A) The endothelium consists of cardiac muscle tissue,blood vessels,and nerves. 
B) The myocardium is comprised of a simple squamous epithelium and an underlying layer of areolar tissue. 
C) The endocardium is the visceral pericardium. 
D) The cardiac muscle tissue forms bands that wrap around the ventricles and spiral into the wall of the atria. 
E) The epicardium is a serous membrane that consists of an exposed epithelium and an underlying layer of areolar tissue.

Question 14

The right ventricle pumps blood to the

Accepted Answer

A) left atrium. 
B) left ventricle. 
C) lungs. 
D) systemic circuit. 
E) right atrium. 
A) left atrium. 
B) left ventricle. 
C) lungs. 
D) systemic circuit. 
E) right atrium.

Question 15

The property of heart muscle in which it contracts in the absence of neural or hormonal stimulation is called

Accepted Answer

A) tamponade. 
B) thrombosis. 
C) autorhythmicity. 
D) arrhythmias. 
E) tetanus. 
A) tamponade. 
B) thrombosis. 
C) autorhythmicity. 
D) arrhythmias. 
E) tetanus.

Question 16

The heart is surrounded by the

Accepted Answer

A) pleural cavity. 
B) peritoneal cavity. 
C) cardiac skeleton. 
D) pericardial cavity. 
E) coronary sinus. 
A) pleural cavity. 
B) peritoneal cavity. 
C) cardiac skeleton. 
D) pericardial cavity. 
E) coronary sinus.

Question 17

During ventricular systole,

Accepted Answer

A) the ventricles are relaxed. 
B) blood is entering the ventricle. 
C) the semilunar valves remain closed. 
D) the pressure in the ventricles decreases. 
E) the ventricles are contracting. 
A) the ventricles are relaxed. 
B) blood is entering the ventricle. 
C) the semilunar valves remain closed. 
D) the pressure in the ventricles decreases. 
E) the ventricles are contracting.

Question 18

Abnormal patterns of cardiac activity are known as

Accepted Answer

A) automaticity. 
B) ischemias. 
C) defibrillations. 
D) arrhythmias. 
E) contractility. 
A) automaticity. 
B) ischemias. 
C) defibrillations. 
D) arrhythmias. 
E) contractility.

Question 19

The two heart reflexes directly respond to changes in

Accepted Answer

A) blood volume. 
B) hormones released. 
C) oxygen levels in the blood. 
D) calcium concentrations. 
E) the pH of blood. 
A) blood volume. 
B) hormones released. 
C) oxygen levels in the blood. 
D) calcium concentrations. 
E) the pH of blood.

Question 20

-Label D represents the

Accepted Answer

A) pulmonary veins. 
B) pulmonary trunk. 
C) pulmonary arteries. 
D) superior vena cava. 
E) inferior vena cava. 
A) pulmonary veins. 
B) pulmonary trunk. 
C) pulmonary arteries. 
D) superior vena cava. 
E) inferior vena cava.

-Label C represents the

The tricuspid valve is located

The QRS complex on an ECG tracing represents

When the heart rate and stroke volume in a normal heart increase together,the cardiac output can increase by ________ percent.

The following is a list of vessels and structures that are associated with the heart. 1.right atrium 2.left atrium 3.right ventricle 4.left ventricle 5.vena cavae 6.aorta 7.pulmonary trunk 8.pulmonary veins What is the correct order for the flow of blood entering from the systemic circulation?

Which of the following indicates the start of the systemic circuit?

Which structural feature of the heart is a deep groove,usually filled with substantial amounts of fat,marking the border between the atria and the ventricles?

Which of the following is greatest during left ventricular systole?

Which statement regarding autonomic innervation of the heart is correct?

-Label N represents the

The great and middle cardiac veins drain blood directly into the

Which statement is correct regarding the heart wall?

The right ventricle pumps blood to the

The property of heart muscle in which it contracts in the absence of neural or hormonal stimulation is called

The heart is surrounded by the

During ventricular systole,

Abnormal patterns of cardiac activity are known as

The two heart reflexes directly respond to changes in

-Label D represents the

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

Cell Structure and Function

The Tissue Level of Organization

The Integumentary System

The Skeletal System

The Muscular System

The Nervous System

The General and Special Senses

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

The Reproductive System

Development and Inheritance

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Exam 12: The Cardiovascular System: the Heart

-Label C represents the

The tricuspid valve is located

The QRS complex on an ECG tracing represents

When the heart rate and stroke volume in a normal heart increase together,the cardiac output can increase by ________ percent.

The following is a list of vessels and structures that are associated with the heart. 1.right atrium 2.left atrium 3.right ventricle 4.left ventricle 5.vena cavae 6.aorta 7.pulmonary trunk 8.pulmonary veins What is the correct order for the flow of blood entering from the systemic circulation?

Which of the following indicates the start of the systemic circuit?

Which structural feature of the heart is a deep groove,usually filled with substantial amounts of fat,marking the border between the atria and the ventricles?

Which of the following is greatest during left ventricular systole?

Which statement regarding autonomic innervation of the heart is correct?

-Label N represents the

The great and middle cardiac veins drain blood directly into the

Which statement is correct regarding the heart wall?

The right ventricle pumps blood to the

The property of heart muscle in which it contracts in the absence of neural or hormonal stimulation is called

The heart is surrounded by the

During ventricular systole,

Abnormal patterns of cardiac activity are known as

The two heart reflexes directly respond to changes in

-Label D represents the

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

Cell Structure and Function

The Tissue Level of Organization

The Integumentary System

The Skeletal System

The Muscular System

The Nervous System

The General and Special Senses

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

The Reproductive System

Development and Inheritance

Filters