Question 1

The walls of the bronchioles are made up of

Accepted Answer

A)  cartilage.
B)  smooth muscle.
C)  cartilage and smooth muscle.
D)  cartilage and skeletal muscle.
E)  skeletal musclE.F) C) and E)
G) C) and D)

Question 2

The smooth muscle of the diaphragm expands the lungs and the skeletal muscle of the lungs regulates airflow to the alveoli.

Accepted Answer

A) True 
 B)False

Question 3

Blood that reaches the heart tissue via the coronary artery has more oxygen in it than the tissue itself.

Accepted Answer

A) True 
 B)False

Question 4

If you had a patient with blood improperly draining from all areas above the diaphragm,you would suspect a problem with the

Accepted Answer

A)  femoral vein.
B)  superior vena cava.
C)  pulmonary vein.
D)  inferior vena cava.
E)  jugular vein.F) C) and D)
G) A) and C)

Question 5

The largest artery in the body is the

Accepted Answer

A)  coronary artery.
B)  superior vena cava.
C)  aorta.
D)  pulmonary artery.
E)  carotid artery.F) A) and B)
G) C) and D)

Question 6

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)  The left chambers are reduced or absent in many subadults.
B)  The right chambers of the heart are weaker and need more stimulation.
C)  Only the right chambers of the heart need to contract to move blood to the lungs.
D)  It is easier to run the wires from the pacemaker through the vena cava.
E)  Once the right chambers are activated the pulse will be carried to the left chambers.F) B) and C)
G) A) and E)

Question 7

Birds and mammals are endotherms,meaning they spend enormous amounts of energy maintaining a constant body temperature.To meet these energy needs,birds and mammals independently evolved four-chambered hearts,completing the separation of oxygen-rich from oxygen-depleted blood.How would this maximize the amount of oxygen reaching tissues?

Accepted Answer

A)  Diffusion of oxygen from oxygenated blood into tissues would be increased.
B)  Diffusion of oxygen from oxygenated blood into tissues would be decreased.
C)  Less energy would be required to pump oxygen into the blood.
D)  Less energy would be required to pump oxygen into the tissues.
E)  Less energy would be required to pump oxygen into the lungs.F) None of the above
G) A) and B)

Question 8

Which is the correct order for the time required to replace each blood component from shortest to longest?

Accepted Answer

A)  plasma,red blood cell,platelet
B)  platelet,red blood cell,plasma
C)  red blood cell,platelet,plasma
D)  plasma,platelet,red blood cell
E)  red blood cell,plasma,plateletF) A) and B)
G) A) and E)

Question 9

Blood transports the most carbon dioxide in what form?

Accepted Answer

A)  as bicarbonate ions
B)  in red blood cells
C)  dissolved in the plasma
D)  bound to hemoglobin
E)  bound to myoglobinF) None of the above
G) B) and D)

Question 10

The medulla has receptors that monitor H+ concentrations in the blood.

Accepted Answer

A) True 
 B)False

Question 11

Diastolic pressure reflects

Accepted Answer

A)  the contraction of the atriA.
B)  the contraction of the ventricles.
C)  the relaxation of the ventricles.
D)  the relaxation of the atria.
E)  the heart ratE.F) A) and B)
G) All of the above

Question 12

Sleep apnea is temporarily ceasing to breathe and is more common in people who are overweight.Excess fat in the neck compresses the ____ cutting off air flow.

Accepted Answer

A)  larynx
B)  thorax
C)  bronchi
D)  lungs
E)  alveoliF) A) and D)
G) A) and C)

Question 13

A person has a blood type of A.They could receive a whole blood transfusion from which donors?

Accepted Answer

A)  A only
B)  O only
C)  B only
D)  both A or OE) All of the above
F) A) and D)

Question 14

The upper chambers of the mammalian heart are the

Accepted Answer

A)  ventricles.
B)  arteries.
C)  vascular cavities.
D)  atria.
E)  sinuses.F) A) and C)
G) A) and B)

Question 15

The narrowing of blood vessels is

Accepted Answer

A)  vasoconstriction.
B)  cardioconstriction.
C)  vasodilation.
D)  cardiodilation.
E)  No answer is correct.F) C) and E)
G) A) and E)

Question 16

Air moves into the lungs when the air pressure in the lungs is __________________ than the air pressure outside of the lungs.This occurs when the muscles of the diaphragm _______________.

Accepted Answer

A)  lower;relax
B)  lower;contract
C)  higher;relax
D)  higher;contractE) B) and D)
F) C) and D)

Question 17

Which is a trend observed in the evolution of respiratory surfaces and lungs in vertebrates?

Accepted Answer

A)  increased size
B)  the presence of capillaries
C)  increased surface area
D)  gain in the ability to absorb oxygen across the skin
E)  ability to move air into the lungsF) A) and B)
G) None of the above

Question 18

In aquatic organisms,highly folded structures that exchange gases directly with water are

Accepted Answer

A)  spicules.
B)  alveoli.
C)  tracheae.
D)  gills.
E)  spiracles.F) A) and E)
G) C) and E)

Question 19

A cut is made into the tissue of a living organism.In which of the following system will the blood flow out of the organism the fastest?

Accepted Answer

A)  open circulatory system
B)  closed circulatory system
C)  open digestive system
D)  open respiratory system
E)  closed respiratory systemF) A) and B)
G) A) and C)

Question 20

In cystic fibrosis,a thick dry mucus builds up in the alveoli.Which would you expect to occur in these patients?

Accepted Answer

A)  decreased rate of respiration
B)  increased diffusion of carbon dioxide into capillaries from the alveoli
C)  decreased blood flow to the alveoli
D)  increased blood flow to the alveoli
E)  decreased diffusion of oxygen into capillaries from the alveoliF) None of the above
G) A) and C)

Exam 27: The Circulatory and Respiratorysystems

Which is the correct order for the time required to replace each blood component from shortest to longest?

Correct Answer
verified

The largest artery in the body is the

Correct Answer
verified

Diastolic pressure reflects

Correct Answer
verified

The medulla has receptors that monitor H⁺ concentrations in the blood.

Correct Answer
verified

Blood that reaches the heart tissue via the coronary artery has more oxygen in it than the tissue itself.

Correct Answer
verified

Sleep apnea is temporarily ceasing to breathe and is more common in people who are overweight.Excess fat in the neck compresses the ____ cutting off air flow.

Correct Answer
verified

If you had a patient with blood improperly draining from all areas above the diaphragm,you would suspect a problem with the

Correct Answer
verified

A cut is made into the tissue of a living organism.In which of the following system will the blood flow out of the organism the fastest?

Correct Answer
verified

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 Answer
verified

In aquatic organisms,highly folded structures that exchange gases directly with water are

Correct Answer
verified

The upper chambers of the mammalian heart are the

Correct Answer
verified

The smooth muscle of the diaphragm expands the lungs and the skeletal muscle of the lungs regulates airflow to the alveoli.

Correct Answer
verified

Air moves into the lungs when the air pressure in the lungs is ____ than the air pressure outside of the lungs.This occurs when the muscles of the diaphragm _.

Correct Answer
verified

A person has a blood type of A.They could receive a whole blood transfusion from which donors?

Correct Answer
verified

The narrowing of blood vessels is

Correct Answer
verified

In cystic fibrosis,a thick dry mucus builds up in the alveoli.Which would you expect to occur in these patients?

Correct Answer
verified

Correct Answer
verified

The walls of the bronchioles are made up of

Correct Answer
verified

Blood transports the most carbon dioxide in what form?

Correct Answer
verified

Which is a trend observed in the evolution of respiratory surfaces and lungs in vertebrates?

Correct Answer
verified

Exam 27: The Circulatory and Respiratorysystems

Which is the correct order for the time required to replace each blood component from shortest to longest?

Correct AnswerverifiedShow Answer

The largest artery in the body is the

Correct AnswerverifiedShow Answer

Diastolic pressure reflects

Correct AnswerverifiedShow Answer

The medulla has receptors that monitor H+ concentrations in the blood.

Correct AnswerverifiedShow Answer

Blood that reaches the heart tissue via the coronary artery has more oxygen in it than the tissue itself.

Correct AnswerverifiedShow Answer

Sleep apnea is temporarily ceasing to breathe and is more common in people who are overweight.Excess fat in the neck compresses the ____ cutting off air flow.

Correct AnswerverifiedShow Answer

If you had a patient with blood improperly draining from all areas above the diaphragm,you would suspect a problem with the

Correct AnswerverifiedShow Answer

A cut is made into the tissue of a living organism.In which of the following system will the blood flow out of the organism the fastest?

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 AnswerverifiedShow Answer

In aquatic organisms,highly folded structures that exchange gases directly with water are

Correct AnswerverifiedShow Answer

The upper chambers of the mammalian heart are the

Correct AnswerverifiedShow Answer

The smooth muscle of the diaphragm expands the lungs and the skeletal muscle of the lungs regulates airflow to the alveoli.

Correct AnswerverifiedShow Answer

Air moves into the lungs when the air pressure in the lungs is __________________ than the air pressure outside of the lungs.This occurs when the muscles of the diaphragm _______________.

Correct AnswerverifiedShow Answer

A person has a blood type of A.They could receive a whole blood transfusion from which donors?

Correct AnswerverifiedShow Answer

The narrowing of blood vessels is

Correct AnswerverifiedShow Answer

In cystic fibrosis,a thick dry mucus builds up in the alveoli.Which would you expect to occur in these patients?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

The walls of the bronchioles are made up of

Correct AnswerverifiedShow Answer

Blood transports the most carbon dioxide in what form?

Correct AnswerverifiedShow Answer

Which is a trend observed in the evolution of respiratory surfaces and lungs in vertebrates?

Correct AnswerverifiedShow Answer

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The medulla has receptors that monitor H⁺ concentrations in the blood.

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

Air moves into the lungs when the air pressure in the lungs is ____ than the air pressure outside of the lungs.This occurs when the muscles of the diaphragm _.

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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