Question 1

Most of the blood vessels of the heart return to the heart via the coronary sinus.

Accepted Answer

A) True 
 B)False  True

Question 2

Match each term related to heart circulation with its corresponding location or description.
-Valve that opens into the right ventricle

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 E

Question 3

Match each ECG wave or complex with the corresponding action in the cardiac cycle.
-Ventricular depolarization

Accepted Answer

A) QRS complex 
B) P wave 
C) T wave 
D) U wave 
A) QRS complex 
B) P wave 
C) T wave 
D) U wave A

Question 4

A heart murmur is one type of abnormal sound.

Accepted Answer

A) True 
 B)False

Question 5

The pulmonary arteries empty blood into the:

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 6

The mitral valve has three flaps.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following is not true of the myocardium?

Accepted Answer

A)  Cells are joined by intercalated disks. 
B)  The muscle cells are autorhythmic. 
C)  The muscle cells can quickly summate contractions to produce tetanus. 
D)  It is made of electrically coupled functional units called syncytia. 
A)  Cells are joined by intercalated disks. 
B)  The muscle cells are autorhythmic. 
C)  The muscle cells can quickly summate contractions to produce tetanus. 
D)  It is made of electrically coupled functional units called syncytia.

Question 8

Hypokalemia can cause an increase in the size of which of the following?

Accepted Answer

A)  P wave 
B)  QRS complex 
C)  T wave 
D)  U wave 
A)  P wave 
B)  QRS complex 
C)  T wave 
D)  U wave

Question 9

The cavity of the heart that normally has the thickest wall is the:

Accepted Answer

A)  right atrium. 
B)  left atrium. 
C)  right ventricle. 
D)  left ventricle. 
A)  right atrium. 
B)  left atrium. 
C)  right ventricle. 
D)  left ventricle.

Question 10

If today is your twenty-third birthday, your heart has been beating for more than 23 years.

Accepted Answer

A) True 
 B)False

Question 11

The period during which blood is pumped out of the atria and into the ventricles is called:

Accepted Answer

A)  atrial systole. 
B)  isovolumetric ventricular contraction. 
C)  isovolumetric ventricular relaxation. 
D)  passive ventricular filling. 
A)  atrial systole. 
B)  isovolumetric ventricular contraction. 
C)  isovolumetric ventricular relaxation. 
D)  passive ventricular filling.

Question 12

What part of the heart should serve as the normal pacemaker?

Accepted Answer

A: The normal pacemaker of the heart is

Question 13

Which of the following most accurately describes what is measured by an electrocardiogram?

Accepted Answer

A)  Electrical conductivity 
B)  Number of contractions per minute 
C)  The speed and strength of contractions 
D)  Any abnormal functioning 
A)  Electrical conductivity 
B)  Number of contractions per minute 
C)  The speed and strength of contractions 
D)  Any abnormal functioning

Question 14

Tachycardia is normal during sleep and in conditioned athletes while they are awake (but at rest).

Accepted Answer

A) True 
 B)False

Question 15

If damaged, which valve could allow blood to leak back into the right atrium?

Accepted Answer

A)  Bicuspid 
B)  Tricuspid 
C)  Aortic semilunar 
D)  Pulmonary semilunar 
A)  Bicuspid 
B)  Tricuspid 
C)  Aortic semilunar 
D)  Pulmonary semilunar

Question 16

To support maximum muscle contraction of the heart muscle, the blood flow to the heart is highest during the strongest contractions.

Accepted Answer

A) True 
 B)False

Question 17

The term ischemia refers to abnormal heart sounds.

Accepted Answer

A) True 
 B)False

Question 18

Explain what occurs during atrial systole, isovolumetric ventricular contraction, and isovolumetric ventricular relaxation.

Accepted Answer

During atrial systole, the atria contrac

Question 19

Match each term related to heart circulation with its corresponding location or description.
-Blood vessel into which the left ventricle pumps blood through a semilunar 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 20

Atria receive blood from veins, and ventricles pump blood into arteries.

Accepted Answer

A) True 
 B)False

Exam 28: Heart

Most of the blood vessels of the heart return to the heart via the coronary sinus.

Match each term related to heart circulation with its corresponding location or description. -Valve that opens into the right ventricle

Match each ECG wave or complex with the corresponding action in the cardiac cycle. -Ventricular depolarization

A heart murmur is one type of abnormal sound.

The pulmonary arteries empty blood into the:

The mitral valve has three flaps.

Which of the following is not true of the myocardium?

Hypokalemia can cause an increase in the size of which of the following?

The cavity of the heart that normally has the thickest wall is the:

If today is your twenty-third birthday, your heart has been beating for more than 23 years.

The period during which blood is pumped out of the atria and into the ventricles is called:

What part of the heart should serve as the normal pacemaker?

Which of the following most accurately describes what is measured by an electrocardiogram?

Tachycardia is normal during sleep and in conditioned athletes while they are awake (but at rest).

If damaged, which valve could allow blood to leak back into the right atrium?

To support maximum muscle contraction of the heart muscle, the blood flow to the heart is highest during the strongest contractions.

The term ischemia refers to abnormal heart sounds.

Explain what occurs during atrial systole, isovolumetric ventricular contraction, and isovolumetric ventricular relaxation.

Match each term related to heart circulation with its corresponding location or description. -Blood vessel into which the left ventricle pumps blood through a semilunar valve

Atria receive blood from veins, and ventricles pump blood into arteries.

Organization of the Body

Homeostasis

Chemical Basis of Life

Biomolecules

Cell Structure

Cell Function

Cell Growth and Development

Introduction to Tissues

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Muscle Contraction

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Endocrine Regulation

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