Question 1

Closure of the heart's four valves create the lubb-dupp sounds of a heartbeat.

Accepted Answer

A) True 
 B)False

Question 2

The outermost membrane that forms a loose-fitting sac around the heart is the

Accepted Answer

A)   fibrous pericardium.
B)   epicardium.
C)   endocardium.
D)   visceral pericardium.
E)   myocardium.F) A) and B)
G) A) and C)

Question 3

Blood from the coronary sinus empties into the right atrium.

Accepted Answer

A) True 
 B)False

Question 4

Normal heart rate is closest to which range?

Accepted Answer

A)   60 - 80
B)   80 - 90
C)   50 - 60
D)   90 - 100E) None of the above
F) All of the above

Question 5

Which type of blood vessel serves as a blood reservoir?

Accepted Answer

A)   arteries
B)   arterioles
C)   capillaries
D)   veins
E)   venulesF) None of the above
G) B) and E)

Question 6

How do respiratory movements and skeletal muscle contraction affect circulation?

Accepted Answer

A)   They are synergistic because both assist circulation by squeezing and "pumping" venous blood.
B)   They are antagonistic forces because skeletal muscles assist venous blood movement but respiratory activity inhibits venous movement.
C)   Both synergistically lower blood pressure by enhancing vasodilation which directly stimulates the cardiac regulatory center.
D)   Both synergistically increase blood pressure by stimulating the sympathetic nervous system to vasodilate arteries.
E)   all of theseF) C) and D)
G) None of the above

Question 7

The volume of blood discharged from the ventricle in a minute heartbeat is known as _________.

Accepted Answer

A)   cardiac output
B)   stroke volume
C)   cardiac cycle
D)   minute cardiac volumeE) C) and D)
F) B) and D)

Question 8

Parasympathetic stimulation of the heart decreases heart rate and sympathetic stimulation increases heart rate.

Accepted Answer

A) True 
 B)False

Question 9

A resting heart rate that exceeds 100 beats per minute is called __________.

Accepted Answer

A)   hypercardia
B)   hypertension
C)   tachycardia
D)   bradycardiaE) None of the above
F) A) and D)

Question 10

Which blood vessel type has the lowest blood pressure?

Accepted Answer

A)   arteries
B)   veins
C)   capillaries
D)   venulesE) A) and B)
F) C) and D)

Question 11

Due to the small diameter of the atrioventricular (AV)node conduction fibers,impulses are accelerated.

Accepted Answer

A) True 
 B)False

Question 12

The density of capillaries within a tissue varies directly with the tissue's

Accepted Answer

A)   thickness.
B)   fluid content.
C)   type of matrix.
D)   rate of metabolism.
E)   surface area.F) B) and E)
G) A) and E)

Question 13

Arteries are strong,elastic vessels that carry blood to the heart.

Accepted Answer

A) True 
 B)False

Question 14

The heart is in the pericardial cavity.

Accepted Answer

A) True 
 B)False  False

Question 15

The volume of blood discharged from the ventricle with each heartbeat is known as _________.

Accepted Answer

A)   cardiac output
B)   stroke volume
C)   cardiac cycle
D)   minute cardiac volumeE) A) and B)
F) A) and C)

Question 16

An abnormally slow heart rate (fewer than 60 beats per minutes) is called __________.

Accepted Answer

A)   hypercardia
B)   hypertension
C)   tachycardia
D)   bradycardiaE) A) and D)
F) A) and C)

Question 17

When ventricles relax,pressure drops to a minimum value known as the systolic pressure.

Accepted Answer

A) True 
 B)False

Question 18

What large blood vessel is formed by veins leaving digestive organs such as the stomach,spleen and intestines?

Accepted Answer

A)   celiac vein
B)   hepatic portal vein
C)   hepatic vein
D)   umbilical veinE) B) and C)
F) None of the above

Question 19

There is/are ________ brachiocephalic arteries and ________ brachiocephalic veins.

Accepted Answer

A)   1,2
B)   3,3
C)   3,2
D)   2,2
E)   2,1F) B) and C)
G) C) and D) A

Question 20

Osmotic pressure forces molecules in the blood out through capillary walls.

Accepted Answer

A) True 
 B)False  False

Exam 13: Cardiovascular System

Closure of the heart's four valves create the lubb-dupp sounds of a heartbeat.

Correct AnswerverifiedShow Answer

The outermost membrane that forms a loose-fitting sac around the heart is the

Correct AnswerverifiedShow Answer

Blood from the coronary sinus empties into the right atrium.

Correct AnswerverifiedShow Answer

Normal heart rate is closest to which range?

Correct AnswerverifiedShow Answer

Which type of blood vessel serves as a blood reservoir?

Correct AnswerverifiedShow Answer

How do respiratory movements and skeletal muscle contraction affect circulation?

Correct AnswerverifiedShow Answer

The volume of blood discharged from the ventricle in a minute heartbeat is known as _________.

Correct AnswerverifiedShow Answer

Parasympathetic stimulation of the heart decreases heart rate and sympathetic stimulation increases heart rate.

Correct AnswerverifiedShow Answer

A resting heart rate that exceeds 100 beats per minute is called __________.

Correct AnswerverifiedShow Answer

Which blood vessel type has the lowest blood pressure?

Correct AnswerverifiedShow Answer

Due to the small diameter of the atrioventricular (AV)node conduction fibers,impulses are accelerated.

Correct AnswerverifiedShow Answer

The density of capillaries within a tissue varies directly with the tissue's

Correct AnswerverifiedShow Answer

Arteries are strong,elastic vessels that carry blood to the heart.

Correct AnswerverifiedShow Answer

The heart is in the pericardial cavity.

Correct AnswerverifiedFalse

The volume of blood discharged from the ventricle with each heartbeat is known as _________.

Correct AnswerverifiedShow Answer

An abnormally slow heart rate (fewer than 60 beats per minutes) is called __________.

Correct AnswerverifiedShow Answer

When ventricles relax,pressure drops to a minimum value known as the systolic pressure.

Correct AnswerverifiedShow Answer

What large blood vessel is formed by veins leaving digestive organs such as the stomach,spleen and intestines?

Correct AnswerverifiedShow Answer

There is/are ________ brachiocephalic arteries and ________ brachiocephalic veins.

Correct AnswerverifiedA

Osmotic pressure forces molecules in the blood out through capillary walls.

Correct AnswerverifiedFalse

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False

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There is/are brachiocephalic arteries and brachiocephalic veins.

Correct Answer
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A

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False