Question 1

The ________ vein is the longest vein in the body.

Accepted Answer

The answer of The ________ vein is the longest vein...

Question 2

Blood that is pumped from the right ventricle passes through the aortic valve.

Accepted Answer

A) True 
 B)False

Question 3

Impulses carried to the heart by means of fibers that secrete acetylcholine are

Accepted Answer

A)   parasympathetic impulses and cause the heart rate to increase.
B)   parasympathetic impulses and cause the heart rate to decrease.
C)   sympathetic impulses and cause the heart rate to increase.
D)   sympathetic impulses and cause the heart rate to decrease.
E)   somatic impulses and cause the heart rate to decrease.F) C) and E)
G) A) and D)

Question 4

The outer layer of the heart wall is called the _________.

Accepted Answer

A)   epicardium
B)   myocardium
C)   parietal pericardium
D)   endocardiumE) B) and D)
F) B) and C)

Question 5

The difference between systolic and diastolic blood pressure can be palpated and is known as ___________.

Accepted Answer

A)   pulse
B)   hypertension
C)   cardiac output
D)   mean arterial pressureE) B) and D)
F) B) and C)

Question 6

Arteries carry blood away from the heart.

Accepted Answer

A) True 
 B)False

Question 7

When the left ventricle contracts,blood passes into the ________.

Accepted Answer

The answer of When the left ventricle contracts,blood passes into...

Question 8

The blood pressure in the systemic arteries is greatest during

Accepted Answer

A)   atrial systole.
B)   ventricular systole.
C)   ventricular diastole.
D)   arterial diastole.
E)   atrial diastole.F) D) and E)
G) A) and D)

Question 9

When the blood pressure increases,veins function as blood reservoirs and respond by constricting their walls.

Accepted Answer

A) True 
 B)False

Question 10

Capillary walls are only one cell layer thick.

Accepted Answer

A) True 
 B)False

Question 11

Depolarization of the atria is an electrical event that produces what pattern in an ECG tracing?

Accepted Answer

A)   P wave
B)   PR interval
C)   QRS complex
D)   T wave
E)   PQ intervalF) All of the above
G) A) and C)

Question 12

The T wave of an ECG pattern represents the repolarization of the ________.

Accepted Answer

The answer of The T wave of an ECG pattern...

Question 13

Which of the following is NOT a risk factor for atherosclerosis?

Accepted Answer

A)   diet high in unsaturated fats
B)   high blood pressure
C)   lack of physical exercise
D)   obesity
E)   tobacco smokingF) All of the above
G) A) and B)

Question 14

What valve separates the left atrium from the left ventricle?

Accepted Answer

A)   mitral
B)   tricuspid
C)   pulmonary
D)   aorticE) A) and D)
F) A) and C)

Question 15

What part of the ECG pattern is due to depolarization of the ventricles?

Accepted Answer

A)   P wave
B)   PR interval
C)   QRS complex
D)   T wave
E)   PQ intervalF) None of the above
G) C) and D)

Question 16

Which of the following helps return blood to the heart?

Accepted Answer

A)   positive intrathoracic pressure
B)   valves in the arteries
C)   contracting skeletal muscles
D)   capillary action
E)   ventricular contractionF) A) and D)
G) A) and C)

Question 17

In humans,circulation of the blood is a closed system.

Accepted Answer

A) True 
 B)False

Question 18

The ________ circuit sends oxygen-rich blood from the heart to all cells of the body,removes carbon dioxide and other wastes,and returns blood to the heart.

Accepted Answer

A)   cardiovascular
B)   visceral
C)   pulmonary
D)   systemicE) A) and D)
F) B) and D)

Question 19

In an ECG pattern,the T wave is caused by

Accepted Answer

A)   repolarization of atrial muscle fibers.
B)   repolarization of ventricular muscle fibers.
C)   depolarization of atrial muscle fibers.
D)   depolarization of ventricular muscle fibers.
E)   none of the above.F) C) and D)
G) B) and D)

Question 20

The endocardial layer of the heart wall is the innermost layer and is in direct contact with the blood.

Accepted Answer

A) True 
 B)False

Exam 13: Cardiovascular System

The T wave of an ECG pattern represents the repolarization of the ________.

Correct AnswerverifiedShow Answer

Depolarization of the atria is an electrical event that produces what pattern in an ECG tracing?

Correct AnswerverifiedShow Answer

Impulses carried to the heart by means of fibers that secrete acetylcholine are

Correct AnswerverifiedShow Answer

The difference between systolic and diastolic blood pressure can be palpated and is known as ___________.

Correct AnswerverifiedShow Answer

In humans,circulation of the blood is a closed system.

Correct AnswerverifiedShow Answer

Which of the following helps return blood to the heart?

Correct AnswerverifiedShow Answer

Arteries carry blood away from the heart.

Correct AnswerverifiedShow Answer

When the blood pressure increases,veins function as blood reservoirs and respond by constricting their walls.

Correct AnswerverifiedShow Answer

The ________ vein is the longest vein in the body.

Correct AnswerverifiedShow Answer

When the left ventricle contracts,blood passes into the ________.

Correct AnswerverifiedShow Answer

What part of the ECG pattern is due to depolarization of the ventricles?

Correct AnswerverifiedShow Answer

The blood pressure in the systemic arteries is greatest during

Correct AnswerverifiedShow Answer

The endocardial layer of the heart wall is the innermost layer and is in direct contact with the blood.

Correct AnswerverifiedShow Answer

In an ECG pattern,the T wave is caused by

Correct AnswerverifiedShow Answer

The outer layer of the heart wall is called the _________.

Correct AnswerverifiedShow Answer

Capillary walls are only one cell layer thick.

Correct AnswerverifiedShow Answer

The ________ circuit sends oxygen-rich blood from the heart to all cells of the body,removes carbon dioxide and other wastes,and returns blood to the heart.

Correct AnswerverifiedShow Answer

Blood that is pumped from the right ventricle passes through the aortic valve.

Correct AnswerverifiedShow Answer

Which of the following is NOT a risk factor for atherosclerosis?

Correct AnswerverifiedShow Answer

What valve separates the left atrium from the left ventricle?

Correct AnswerverifiedShow Answer

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