Question 1

Which of the following arteries does not carry oxygenated blood?

Accepted Answer

A)  Pulmonary artery
B)  Femoral artery
C)  Renal artery
D)  Aorta
E)  Carotid arteryF) A) and E)
G) B) and C)

Question 2

A heartbeat begins in the:

Accepted Answer

A)  Atrioventricular valve
B)  Atrioventricular node
C)  Sinoatrial node
D)  Right ventricle
E)  Left atriumF) A) and D)
G) A) and C)

Question 3

A whole blood cell transfusion would be used to treat which of the following?

Accepted Answer

A)  Arrhythmia
B)  Aneurysm
C)  Anemia
D)  Heart attack due to atherosclerosis
E)  TachycardiaF) B) and E)
G) None of the above C

Question 4

The major artery that carries oxygenated blood away from the heart is the:

Accepted Answer

A)  Pulmonary artery
B)  Aorta
C)  Carotid artery
D)  Renal artery
E)  Brachial arteryF) A) and B)
G) All of the above

Question 5

The atrioventricular node sets the tempo of the heart beat.

Accepted Answer

A) True 
 B)False  False

Question 6

Hemoglobin is red because iron atoms do which of the following?

Accepted Answer

A)  Reflect yellow light
B)  Reflect blue light
C)  Reflect red light
D)  Reflect yellow and blue light
E)  Reflect yellow and red lightF) B) and E)
G) B) and D)

Question 7

The cellular components of blood that destroy foreign substances are:

Accepted Answer

A)  Erythrocytes
B)  Chondrocytes
C)  Platelets
D)  Leukocytes
E)  OsteocytesF) C) and E)
G) A) and D)

Question 8

A dual-chamber pacemaker is surgically placed in a patient's chest.Wires then carry pulses to the right atrium and the right ventricle.Why would the pulses be carried to the right chambers of the heart and not the left chambers?

Accepted Answer

A)  Because the right chambers are the natural pacemaker of the heart
B)  Because the right chambers of the heart are weaker and need more stimulation
C)  Because only the right chambers of the heart need to contract to move blood to the lungs
D)  Because it is easier to run the wires from the pacemaker through the vena cava
E)  Because once the right chambers are activated the pulse will be carried to the left chambersF) C) and E)
G) B) and C) E

Question 9

Which of the following is not a major part of the lymph system?

Accepted Answer

A)  Skeletal muscle
B)  Tonsil
C)  Spleen
D)  Pancreas
E)  ThymusF) B) and E)
G) All of the above

Question 10

The liquid matrix of blood is:

Accepted Answer

A)  Interstitial fluid
B)  Water
C)  Cytosol
D)  Plasma
E)  LymphF) A) and C)
G) All of the above

Question 11

The capillary wall consists only of:

Accepted Answer

A)  A single layer of epithelial cells covered by connective tissue
B)  Connective tissue
C)  A single layer of endothelial cells
D)  Smooth muscle
E)  A single layer of epithelial cells covered by smooth muscleF) C) and D)
G) A) and D)

Question 12

Why would ice fish lose their alpha and beta globin genes through mutation?

Accepted Answer

A)  If hemoglobin was not necessary there was no selective pressure to keep mutations from accumulating
B)  The fish wanted to stop producing red blood cells, so they mutated the globin genes
C)  Fish with red blood cells were more visible to predators and were eaten
D)  Mistakes in DNA replication are more likely to occur at colder temperatures
E)  Fish living in the cold cannot obtain enough iron to make hemoglobinF) C) and E)
G) B) and C)

Question 13

The small vessels from which water and dissolved substances diffuse between the blood and interstitial fluid are:

Accepted Answer

A)  Arteries
B)  Veins
C)  Lymph vessels
D)  Capillaries
E)  Sieve tubesF) C) and D)
G) A) and E)

Question 14

Vertebrates with a four-chambered heart include:

Accepted Answer

A)  Fish
B)  Reptiles
C)  Birds
D)  Amphibians
E)  AnnelidsF) A) and B)
G) A) and C)

Question 15

Blood pressure that is significantly lower than normal is referred to as hypertension.

Accepted Answer

A) True 
 B)False

Question 16

A decrease in the oxygen carrying capacity of blood is called anemia.

Accepted Answer

A) True 
 B)False

Question 17

Blood pressure is:

Accepted Answer

A)  The force that interstitial fluid exerts on the walls of the arteries
B)  The force that blood exerts on the walls of the ventricles of the heart
C)  The force that blood exerts on the walls of the arteries
D)  The force that interstitial fluid exerts on the walls of the veins
E)  The force that blood exerts on the walls of the veinsF) A) and B)
G) B) and D)

Question 18

The two largest veins of the body that deliver blood to the right atrium are the:

Accepted Answer

A)  Pulmonary vein and inferior vena cava
B)  Superior vena cava and pulmonary vein
C)  Aorta and inferior vena cava
D)  Inferior vena cava and superior vena cava
E)  Aorta and superior vena cavaF) A) and E)
G) B) and E)

Question 19

A dual-chamber pacemaker is surgically placed in a patient's chest.Wires then carry pulses to the right atrium and the right ventricle.How would the pulses be directed from the pacemaker to the heart?

Accepted Answer

A)  Only the ventricle would be stimulated
B)  The ventricle would be stimulated first and then the atrium
C)  Both the atrium and ventricle would be stimulated simultaneously
D)  Only the atrium would be stimulated
E)  The atrium would be stimulated first and then the ventricleF) B) and D)
G) A) and E)

Question 20

Which of the following is an artery that supplies blood to the heart muscle?

Accepted Answer

A)  Aorta
B)  Coronary artery
C)  Carotid artery
D)  Superior vena cava
E)  Inferior vena cavaF) B) and C)
G) B) and E)

Exam 29: The Circulatory System

Which of the following arteries does not carry oxygenated blood?

Correct AnswerverifiedShow Answer

A heartbeat begins in the:

Correct AnswerverifiedShow Answer

A whole blood cell transfusion would be used to treat which of the following?

Correct AnswerverifiedC

The major artery that carries oxygenated blood away from the heart is the:

Correct AnswerverifiedShow Answer

The atrioventricular node sets the tempo of the heart beat.

Correct AnswerverifiedFalse

Hemoglobin is red because iron atoms do which of the following?

Correct AnswerverifiedShow Answer

The cellular components of blood that destroy foreign substances are:

Correct AnswerverifiedShow Answer

A dual-chamber pacemaker is surgically placed in a patient's chest.Wires then carry pulses to the right atrium and the right ventricle.Why would the pulses be carried to the right chambers of the heart and not the left chambers?

Correct AnswerverifiedE

Which of the following is not a major part of the lymph system?

Correct AnswerverifiedShow Answer

The liquid matrix of blood is:

Correct AnswerverifiedShow Answer

The capillary wall consists only of:

Correct AnswerverifiedShow Answer

Why would ice fish lose their alpha and beta globin genes through mutation?

Correct AnswerverifiedShow Answer

The small vessels from which water and dissolved substances diffuse between the blood and interstitial fluid are:

Correct AnswerverifiedShow Answer

Vertebrates with a four-chambered heart include:

Correct AnswerverifiedShow Answer

Blood pressure that is significantly lower than normal is referred to as hypertension.

Correct AnswerverifiedShow Answer

A decrease in the oxygen carrying capacity of blood is called anemia.

Correct AnswerverifiedShow Answer

Blood pressure is:

Correct AnswerverifiedShow Answer

The two largest veins of the body that deliver blood to the right atrium are the:

Correct AnswerverifiedShow Answer

A dual-chamber pacemaker is surgically placed in a patient's chest.Wires then carry pulses to the right atrium and the right ventricle.How would the pulses be directed from the pacemaker to the heart?

Correct AnswerverifiedShow Answer

Which of the following is an artery that supplies blood to the heart muscle?

Correct AnswerverifiedShow Answer

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E

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