Question 1

Pulmonary arteries take

Accepted Answer

A)   O2-poor blood to the lungs.
B)   O2-rich blood to the lungs.
C)   O2-rich blood to the body.
D)   O2-poor blood to the right atrium.
E)   O2-poor blood to the body.F) A) and E)
G) A) and B)

Question 2

A major evolutionary change seen between fish circulatory systems and amphibian, bird, and mammalian circulatory systems is the presence of a

Accepted Answer

A)   separate pulmonary circuit in fish.
B)   two chambered heart in amphibians, birds, and mammals.
C)   double loop pathway in amphibians, birds, and mammals.
D)   stronger atria in amphibians, birds, and mammals.
E)   four chambered heart in fish.F) A) and E)
G) A) and D)

Question 3

The advantage of the double loop circulatory pathway of some vertebrates over the single loop circulatory pathway of fish is that

Accepted Answer

A)   the blood is put back under pressure after picking up oxygen in the respiratory organ.
B)   all the O2-rich is pumped to the systemic arteries of the body.
C)   the O2-rich blood and O2-poor blood mixes in the single ventricle.
D)   the ventricle acts as a strong pump.
E)   the atria act as receiving chambers.F) B) and E)
G) A) and E)

Question 4

The osmotic pressure and buffering capacity of the blood is maintained by the ________.

Accepted Answer

A)   red blood cells
B)   plasma
C)   lymph
D)   white blood cells
E)   plateletsF) D) and E)
G) B) and C)

Question 5

A type of parasitic worm lives in the lymph vessels of humans, blocking the flow of lymph. What symptoms would you expect in someone with such an infection?

Accepted Answer

A)   the collection of tissue fluids in the areas blocked by the worms
B)   the inability to fight infection
C)   ventricular fibrillation
D)   heart attack
E)   the inability to absorb carbohydrates and proteinsF) A) and D)
G) None of the above

Question 6

You are a doctor and a patient comes to you for a check-up. He expresses that his father recently had a heart attack brought on by atherosclerosis. He wants to know what he should do to lower his risk of also having a heart attack. Which of the following statements might you make to him?

Accepted Answer

A)   Do not be concerned about your weight.
B)   Keep exercise to a minimum.
C)   Decrease the amount of fruits and vegetables in your diet.
D)   Decrease the amount of saturated fat and cholesterol in your diet.
E)   Smoking does not contribute to your risk.F) A) and B)
G) C) and D)

Question 7

In order for cells in multicellular organisms to exchange gases, a circulatory system must be present.

Accepted Answer

A) True 
 B)False

Question 8

Figure: 
-The figure shown here represents a four chambered heart. Part Z represents the ________.

Accepted Answer

A)   pulmonary trunk
B)   septum
C)   left atrium
D)   right ventricle
E)   superior vena cavaF) A) and B)
G) A) and E)

Question 9

Taking up fat from digested foods along with excess tissue fluid and returning it to cardiovascular veins is a function of the __________.

Accepted Answer

A)   circulatory system
B)   systemic circuit
C)   lymphatic system
D)   pulmonary circuit
E)   cardiovascular arteriesF) A) and E)
G) A) and C)

Question 10

If the sinoatrial node fails in the heart

Accepted Answer

A)   the heart ceases to beat.
B)   the ventricles will beat at a higher rate.
C)   an artificial pacemaker can correct the problem.
D)   the heartbeat is unaffected.
E)   the atria will not contract.F) A) and B)
G) C) and D)

Question 11

In the figure shown here, the top ECG shown is normal. What condition does the bottom ECG indicate?

Accepted Answer

A)   ventricular fibrillation
B)   a heart murmur
C)   hypertension
D)   stroke
E)   angina pectorisF) D) and E)
G) A) and E)

Question 12

Blood in veins

Accepted Answer

A)   is moved by the contraction of the muscles in the walls of the veins.
B)   is moved away from the heart by skeletal muscle contraction.
C)   is usually high in oxygen.
D)   is moved away from the heart with the help of the valves within the veins.
E)   is moved toward the heart by skeletal muscle contraction.F) A) and D)
G) B) and E)

Question 13

Which of the following statements is correct about the function of the pulmonary circulatory system?

Accepted Answer

A)   The pulmonary system is responsible for adding oxygen and removing carbon dioxide from the red blood cells.
B)   The systemic system is responsible for adding oxygen and removing carbon dioxide from the red blood cells.
C)   The pulmonary system is responsible for adding carbon dioxide and removing oxygen from the red blood cells.
D)   The pulmonary system is responsible for adding oxygen and removing carbon dioxide from the white blood cells.
E)   The pulmonary system is responsible for adding oxygen and removing carbon dioxide from the platelets.F) A) and B)
G) B) and E)

Question 14

A heart murmur is caused by

Accepted Answer

A)   blocked arteries to the heart muscle.
B)   loss of oxygen to the left atrium.
C)   faulty semilunar valves.
D)   faulty atrioventricular valves.
E)   an irregular heart beat.F) A) and C)
G) B) and C)

Question 15

Because of the nature of platelets, having a low platelet count can be cause for concern if which of the following were to occur?

Accepted Answer

A)   a deep cut
B)   a bacterial infection
C)   a viral infection
D)   a diet deficient in iron
E)   a parasitic worm infectionF) B) and E)
G) A) and B)

Question 16

In animals with four chambered hearts, the left ventricle

Accepted Answer

A)   is larger as it pumps blood to the entire body.
B)   is larger as it pumps blood in the pulmonary circuit.
C)   pumps blood to the lungs.
D)   pumps blood to both the lungs and the body.
E)   pumps deoxygenated blood.F) C) and E)
G) C) and D)

Question 17

The presence of salts and plasma proteins in capillaries causes

Accepted Answer

A)   a greater osmotic pressure than blood pressure at the arterial end.
B)   diffusion of water into the body tissues.
C)   greater osmotic pressure in the blood than in body tissues.
D)   slower flow of blood through capillaries.
E)   water to move out of the blood capillary at the venous end.F) A) and C)
G) A) and B)

Question 18

One of the side effects of chemotherapy is lack of energy due to anemia. Why might erythropoietin be prescribed for a cancer patient undergoing chemotherapy?

Accepted Answer

A)   Erythropoietin treats the anemia by stimulating the production of white blood cells.
B)   Erythropoietin treats the anemia by stimulating the production of red blood cells.
C)   Erythropoietin prevents the destruction of red blood cells, preventing the anemia.
D)   Erythropoietin prevents the destruction of white blood cells, preventing the anemia.
E)   Erythropoietin treats the anemia by stimulating the production of platelets.F) A) and B)
G) D) and E)

Question 19

A neutrophil

Accepted Answer

A)   fights disease.
B)   forms a plug in damaged blood vessels.
C)   carries oxygen in the blood.
D)   releases clotting factors which stimulate the formation of a blood clot.
E)   carries carbon dioxide in the blood.F) A) and E)
G) A) and B)

Question 20

Which of the following collects all the venous blood from below the heart?

Accepted Answer

A)   pulmonary artery
B)   renal vein
C)   hepatic portal vein
D)   aorta
E)   inferior vena cavaF) D) and E)
G) A) and C)

Exam 23: The Transport Systems

Because of the nature of platelets, having a low platelet count can be cause for concern if which of the following were to occur?

Correct AnswerverifiedShow Answer

You are a doctor and a patient comes to you for a check-up. He expresses that his father recently had a heart attack brought on by atherosclerosis. He wants to know what he should do to lower his risk of also having a heart attack. Which of the following statements might you make to him?

Correct AnswerverifiedShow Answer

In order for cells in multicellular organisms to exchange gases, a circulatory system must be present.

Correct AnswerverifiedShow Answer

Blood in veins

Correct AnswerverifiedShow Answer

The advantage of the double loop circulatory pathway of some vertebrates over the single loop circulatory pathway of fish is that

Correct AnswerverifiedShow Answer

The presence of salts and plasma proteins in capillaries causes

Correct AnswerverifiedShow Answer

In animals with four chambered hearts, the left ventricle

Correct AnswerverifiedShow Answer

A neutrophil

Correct AnswerverifiedShow Answer

The osmotic pressure and buffering capacity of the blood is maintained by the ________.

Correct AnswerverifiedShow Answer

In the figure shown here, the top ECG shown is normal. What condition does the bottom ECG indicate?

Correct AnswerverifiedShow Answer

A major evolutionary change seen between fish circulatory systems and amphibian, bird, and mammalian circulatory systems is the presence of a

Correct AnswerverifiedShow Answer

If the sinoatrial node fails in the heart

Correct AnswerverifiedShow Answer

Pulmonary arteries take

Correct AnswerverifiedShow Answer

One of the side effects of chemotherapy is lack of energy due to anemia. Why might erythropoietin be prescribed for a cancer patient undergoing chemotherapy?

Correct AnswerverifiedShow Answer

Figure: -The figure shown here represents a four chambered heart. Part Z represents the ________.

Correct AnswerverifiedShow Answer

A type of parasitic worm lives in the lymph vessels of humans, blocking the flow of lymph. What symptoms would you expect in someone with such an infection?

Correct AnswerverifiedShow Answer

Taking up fat from digested foods along with excess tissue fluid and returning it to cardiovascular veins is a function of the __________.

Correct AnswerverifiedShow Answer

A heart murmur is caused by

Correct AnswerverifiedShow Answer

Which of the following statements is correct about the function of the pulmonary circulatory system?

Correct AnswerverifiedShow Answer

Which of the following collects all the venous blood from below the heart?

Correct AnswerverifiedShow Answer

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