Question 1

Which structure is not perfused by the blood that is pumped from the right ventricle to the left ventricle?

Accepted Answer

A)  Mitral valve 
B)  Pulmonary artery 
C)  Pulmonary veins 
D)  Aorta 
A)  Mitral valve 
B)  Pulmonary artery 
C)  Pulmonary veins 
D)  Aorta

Question 2

Under what condition is blood most likely to flow "backward" (e.g.,from the left ventricle back into the left atrium)?

Accepted Answer

A)  Pulmonary artery hypertension 
B)  Left ventricular hypertrophy 
C)  An insufficient mitral valve 
D)  Pulmonary edema 
A)  Pulmonary artery hypertension 
B)  Left ventricular hypertrophy 
C)  An insufficient mitral valve 
D)  Pulmonary edema

Question 3

S₂ is

Accepted Answer

A)  caused by the closure of the AV valves at the beginning of ventricular contraction. 
B)  the second heart sound. 
C)  the heart sound caused by the sliding of actin and myosin. 
D)  All of the above are true. 
A)  caused by the closure of the AV valves at the beginning of ventricular contraction. 
B)  the second heart sound. 
C)  the heart sound caused by the sliding of actin and myosin. 
D)  All of the above are true.

Question 4

Which of the following is not part of coronary circulation?

Accepted Answer

A)  Left anterior descending artery 
B)  Circumflex artery 
C)  Pulmonary veins 
D)  Posterior descending artery 
A)  Left anterior descending artery 
B)  Circumflex artery 
C)  Pulmonary veins 
D)  Posterior descending artery

Question 5

Referring to the ECG,the QRS complex represents ventricular

Accepted Answer

A)  contraction. 
B)  repolarization. 
C)  relaxation. 
D)  depolarization. 
A)  contraction. 
B)  repolarization. 
C)  relaxation. 
D)  depolarization.

Question 6

In which structure is the oxygen saturation highest?

Accepted Answer

A)  Pulmonary veins 
B)  Venae cavae 
C)  Right ventricle 
D)  Pulmonary artery 
A)  Pulmonary veins 
B)  Venae cavae 
C)  Right ventricle 
D)  Pulmonary artery

Question 7

With which of the following are these words most related: electrical signal,action potential,cardiac impulse,and nerve impulse?

Accepted Answer

A)  Tricuspid and mitral atrioventricular valves 
B)  Aortic and pulmonic semilunar valves 
C)  Depolarization and repolarization 
D)  Contraction and relaxation 
A)  Tricuspid and mitral atrioventricular valves 
B)  Aortic and pulmonic semilunar valves 
C)  Depolarization and repolarization 
D)  Contraction and relaxation

Question 8

Which of the following is most related to "lubb" (of the lubb-dupp duo)?

Accepted Answer

A)  Called S1 
B)  Caused by the closure of the AV valves 
C)  Occurs in response to ventricular contraction 
D)  All of the above 
A)  Called S1 
B)  Caused by the closure of the AV valves 
C)  Occurs in response to ventricular contraction 
D)  All of the above

Question 9

All of the following are electrical terms except

Accepted Answer

A)  sarcomere. 
B)  depolarization. 
C)  action potential. 
D)  repolarization. 
A)  sarcomere. 
B)  depolarization. 
C)  action potential. 
D)  repolarization.

Question 10

A hole in the interventricular septum causes

Accepted Answer

A)  a right-to-left shunt. 
B)  extreme cyanosis. 
C)  blood to shunt from the left ventricle to the right ventricle. 
D)  blood to shunt from the left ventricle to the pulmonary artery. 
A)  a right-to-left shunt. 
B)  extreme cyanosis. 
C)  blood to shunt from the left ventricle to the right ventricle. 
D)  blood to shunt from the left ventricle to the pulmonary artery.

Question 11

Which of the following is not considered a "great" vessel?

Accepted Answer

A)  Left anterior descending artery 
B)  Aorta 
C)  Venae cavae 
D)  Pulmonary artery 
A)  Left anterior descending artery 
B)  Aorta 
C)  Venae cavae 
D)  Pulmonary artery

Question 12

Which layer of the heart has actin,myosin,and intercalated discs?

Accepted Answer

A)  Myocardium 
B)  Endocardium 
C)  Epicardium 
D)  Pericardium 
A)  Myocardium 
B)  Endocardium 
C)  Epicardium 
D)  Pericardium

Question 13

Which of the following is a result of ventricular contraction?

Accepted Answer

A)  The AV valves open. 
B)  The semilunar valves close. 
C)  Blood is pumped into the pulmonary artery and the aorta. 
D)  Blood flows back into the atria. 
A)  The AV valves open. 
B)  The semilunar valves close. 
C)  Blood is pumped into the pulmonary artery and the aorta. 
D)  Blood flows back into the atria.

Question 14

Which of the following best indicates why the left ventricular myocardium is thicker than the right ventricular myocardium?

Accepted Answer

A)  Left ventricular oxygen saturation is greater in the left ventricle. 
B)  The left ventricle works harder than the right ventricle. 
C)  The aortic valve is narrower than the pulmonic valve. 
D)  Left ventricular volume is less than right ventricular volume. 
A)  Left ventricular oxygen saturation is greater in the left ventricle. 
B)  The left ventricle works harder than the right ventricle. 
C)  The aortic valve is narrower than the pulmonic valve. 
D)  Left ventricular volume is less than right ventricular volume.

Question 15

Under what condition will the AV node become the pacemaker?

Accepted Answer

A)  When its rate of spontaneous depolarization exceeds that of the ventricular conduction cells 
B)  As a normal response to sympathetic nerve discharge 
C)  When its rate of spontaneous depolarization exceeds that of the SA node 
D)  In the presence of normal sinus rhythm 
A)  When its rate of spontaneous depolarization exceeds that of the ventricular conduction cells 
B)  As a normal response to sympathetic nerve discharge 
C)  When its rate of spontaneous depolarization exceeds that of the SA node 
D)  In the presence of normal sinus rhythm

Question 16

With regard to a ventricular septal defect,

Accepted Answer

A)  a right-to-left shunt occurs in the ventricles. 
B)  oxygen saturation in the left ventricle decreases. 
C)  oxygen saturation in the right ventricle decreases. 
D)  blood shunts from the left to the right ventricle. 
A)  a right-to-left shunt occurs in the ventricles. 
B)  oxygen saturation in the left ventricle decreases. 
C)  oxygen saturation in the right ventricle decreases. 
D)  blood shunts from the left to the right ventricle.

Question 17

What is the cause of ventricular hypertrophy?

Accepted Answer

A)  The heart muscle is not receiving sufficient oxygen. 
B)  The ventricle is working too hard. 
C)  The person has an infection. 
D)  There is excess fluid accumulating in the pericardial space. 
A)  The heart muscle is not receiving sufficient oxygen. 
B)  The ventricle is working too hard. 
C)  The person has an infection. 
D)  There is excess fluid accumulating in the pericardial space.

Question 18

The mitral and the bicuspid valves

Accepted Answer

A)  are semilunar valves. 
B)  are both located on the right side of the heart. 
C)  "see" only unoxygenated blood. 
D)  are the same valves. 
A)  are semilunar valves. 
B)  are both located on the right side of the heart. 
C)  "see" only unoxygenated blood. 
D)  are the same valves.

Question 19

Which structure connects the cusps of the AV valves to the ventricles?

Accepted Answer

A)  Purkinje fibers 
B)  AV node 
C)  Bundle of His 
D)  Chordae tendineae 
A)  Purkinje fibers 
B)  AV node 
C)  Bundle of His 
D)  Chordae tendineae

Question 20

A signal is generated by the SA node and is regularly discharged to the rest of the conduction system.Which of the following best describes this activity?

Accepted Answer

A)  Contraction and relaxation 
B)  Automaticity and rhythmicity 
C)  Sinoatrial node and atrioventricular node 
D)  Lubb dupp 
A)  Contraction and relaxation 
B)  Automaticity and rhythmicity 
C)  Sinoatrial node and atrioventricular node 
D)  Lubb dupp

Exam 16: Anatomy of the Heart

Which structure is not perfused by the blood that is pumped from the right ventricle to the left ventricle?

Under what condition is blood most likely to flow "backward" (e.g.,from the left ventricle back into the left atrium)?

S₂ is

Which of the following is not part of coronary circulation?

Referring to the ECG,the QRS complex represents ventricular

In which structure is the oxygen saturation highest?

With which of the following are these words most related: electrical signal,action potential,cardiac impulse,and nerve impulse?

Which of the following is most related to "lubb" (of the lubb-dupp duo)?

All of the following are electrical terms except

A hole in the interventricular septum causes

Which of the following is not considered a "great" vessel?

Which layer of the heart has actin,myosin,and intercalated discs?

Which of the following is a result of ventricular contraction?

Which of the following best indicates why the left ventricular myocardium is thicker than the right ventricular myocardium?

Under what condition will the AV node become the pacemaker?

With regard to a ventricular septal defect,

What is the cause of ventricular hypertrophy?

The mitral and the bicuspid valves

Which structure connects the cusps of the AV valves to the ventricles?

A signal is generated by the SA node and is regularly discharged to the rest of the conduction system.Which of the following best describes this activity?

Introduction to the Human Body

Basic Chemistry

Cells

Cell Metabolism

Microbiology Basics

Tissues and Membranes

Integumentary System and Body Temperature

Skeletal System

Muscular System

Nervous System: Nervous Tissue and Brain

Nervous System: Spinal Cord and Peripheral Nerves

Autonomic Nervous System

Sensory System

Endocrine System

Blood

Function of the Heart

Anatomy of the Blood Vessels

Functions of the Blood Vessels

Lymphatic System

Immune System

Respiratory System

Digestive System

Urinary System

Water, Electrolyte, and Acid-Base Balance

Reproductive Systems

Human Development and Heredity

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