Question 1

All of the following are true statements except:

Accepted Answer

A) the right coronary artery is dominant in about 50% of all hearts. 
B) both atria receive their blood supply from branches of the right and left coronary arteries. 
C) the more abundant blood supply goes to the myocardium of the left ventricle rather than the right ventricle. 
D) only a few connections, or anastomoses, exist between the larger branches of the coronary arteries. 
A) the right coronary artery is dominant in about 50% of all hearts. 
B) both atria receive their blood supply from branches of the right and left coronary arteries. 
C) the more abundant blood supply goes to the myocardium of the left ventricle rather than the right ventricle. 
D) only a few connections, or anastomoses, exist between the larger branches of the coronary arteries.

Question 2

Which of the following is a semilunar valve?

Accepted Answer

A) Aortic 
B) Mitral 
C) Tricuspid 
D) Bicuspid 
A) Aortic 
B) Mitral 
C) Tricuspid 
D) Bicuspid

Question 3

The veins in the heart are called cardiac, but the arteries in the heart are called coronary.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following statements is not true of the heart?

Accepted Answer

A) The heart of an adult is proportionally larger than the heart of an infant. 
B) The heart reaches its adult size between puberty and 25 years of age. 
C) The average weight of the heart is about 85 grams more in the male than in the female. 
D) The heart tends to take on the shape of the chest of the individual. 
A) The heart of an adult is proportionally larger than the heart of an infant. 
B) The heart reaches its adult size between puberty and 25 years of age. 
C) The average weight of the heart is about 85 grams more in the male than in the female. 
D) The heart tends to take on the shape of the chest of the individual.

Question 5

Respectively, the right and left atrioventricular valves are also known as:

Accepted Answer

A) tricuspid, mitral. 
B) bicuspid, tricuspid. 
C) mitral, bicuspid. 
D) bicuspid, mitral. 
A) tricuspid, mitral. 
B) bicuspid, tricuspid. 
C) mitral, bicuspid. 
D) bicuspid, mitral.

Question 6

Match each term related to heart circulation with its corresponding location or description.
-Heart chamber that receives blood that has just passed through the right atrioventricular valve

Accepted Answer

A) Right ventricle 
B) Right atrium 
C) Left atrium 
D) Left ventricle 
E) Right atrioventricular valve
F)Left atrioventricular valve
G)Aortic semilunar valve
H)Pulmonary semilunar valve
I)Superior vena cava
J)Aorta
K)Pulmonary vein
L)Pulmonary artery 
A) Right ventricle 
B) Right atrium 
C) Left atrium 
D) Left ventricle 
E) Right atrioventricular valve
F)Left atrioventricular valve
G)Aortic semilunar valve
H)Pulmonary semilunar valve
I)Superior vena cava
J)Aorta
K)Pulmonary vein
L)Pulmonary artery

Question 7

Depolarization of the ventricles is:

Accepted Answer

A) clearly depicted by the QRS complex. 
B) masked by the massive ventricular depolarization. 
C) masked by the massive ventricular repolarization. 
D) none of the above. 
A) clearly depicted by the QRS complex. 
B) masked by the massive ventricular depolarization. 
C) masked by the massive ventricular repolarization. 
D) none of the above.

Question 8

On an ECG, the T wave represents:

Accepted Answer

A) depolarization of the atria. 
B) repolarization of the atria. 
C) depolarization of the ventricles. 
D) repolarization of the ventricles. 
A) depolarization of the atria. 
B) repolarization of the atria. 
C) depolarization of the ventricles. 
D) repolarization of the ventricles.

Question 9

The repolarization of the atrium cannot be seen on the ECG because the size of the QRS complex blocks it out.

Accepted Answer

A) True 
 B)False

Question 10

A U wave on an ECG is an indication of damage to ventricular myocardial cells.

Accepted Answer

A) True 
 B)False

Question 11

The most abundant blood supply in the heart goes to the left ventricle.

Accepted Answer

A) True 
 B)False

Question 12

What is the correct explanation for how cardiac tamponade can affect the heart?

Accepted Answer

A) It causes a prolapsed mitral valve, one whose flaps extend back into the left atrium, causing incompetence (leaking) of the valve. 
B) It causes blood to not only eject forward into the aorta but also regurgitate back into the left ventricle because of a leaky aortic semilunar valve. 
C) It is a compression of the heart that impairs its pumping action and makes immediate pericardial drainage necessary. 
D) It is a delayed inflammatory response to streptococcal infection that results in stenosis or other deformities of the valves, chordae tendineae, or myocardium. 
A) It causes a prolapsed mitral valve, one whose flaps extend back into the left atrium, causing incompetence (leaking) of the valve. 
B) It causes blood to not only eject forward into the aorta but also regurgitate back into the left ventricle because of a leaky aortic semilunar valve. 
C) It is a compression of the heart that impairs its pumping action and makes immediate pericardial drainage necessary. 
D) It is a delayed inflammatory response to streptococcal infection that results in stenosis or other deformities of the valves, chordae tendineae, or myocardium.

Question 13

The mitral valve has three flaps.

Accepted Answer

A) True 
 B)False

Question 14

The bulk of the heart wall is myocardium.

Accepted Answer

A) True 
 B)False

Question 15

Blood in both atria must pass through a semilunar valve to get to the next structure in the heart.

Accepted Answer

A) True 
 B)False

Question 16

Blood from the superior vena cava enters which part of the heart?

Accepted Answer

A) Right atrium 
B) Right ventricle 
C) Left atrium 
D) Left ventricle 
A) Right atrium 
B) Right ventricle 
C) Left atrium 
D) Left ventricle

Question 17

The term ischemia refers to abnormal heart sounds.

Accepted Answer

A) True 
 B)False

Question 18

The interaterial bundles divide into right and left bundle branches.

Accepted Answer

A) True 
 B)False

Question 19

The value of an anastomosis is that it allows blood to bypass a blood vessel obstruction.

Accepted Answer

A) True 
 B)False

Question 20

Pericardial fluid can be found between the:

Accepted Answer

A) myocardium and the epicardium. 
B) myocardium and the endocardium. 
C) pericardium and the ribs. 
D) epicardium and the pericardium. 
A) myocardium and the epicardium. 
B) myocardium and the endocardium. 
C) pericardium and the ribs. 
D) epicardium and the pericardium.

Exam 28: Heart

All of the following are true statements except:

Which of the following is a semilunar valve?

The veins in the heart are called cardiac, but the arteries in the heart are called coronary.

Which of the following statements is not true of the heart?

Respectively, the right and left atrioventricular valves are also known as:

Match each term related to heart circulation with its corresponding location or description. -Heart chamber that receives blood that has just passed through the right atrioventricular valve

Depolarization of the ventricles is:

On an ECG, the T wave represents:

The repolarization of the atrium cannot be seen on the ECG because the size of the QRS complex blocks it out.

A U wave on an ECG is an indication of damage to ventricular myocardial cells.

The most abundant blood supply in the heart goes to the left ventricle.

What is the correct explanation for how cardiac tamponade can affect the heart?

The mitral valve has three flaps.

The bulk of the heart wall is myocardium.

Blood in both atria must pass through a semilunar valve to get to the next structure in the heart.

Blood from the superior vena cava enters which part of the heart?

The term ischemia refers to abnormal heart sounds.

The interaterial bundles divide into right and left bundle branches.

The value of an anastomosis is that it allows blood to bypass a blood vessel obstruction.

Pericardial fluid can be found between the:

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