Question 1

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) A) and B)
G) C) and D)

Question 2

A lower-than-normal level of _____ can result in an increased clotting time.

Accepted Answer

A)   platelets
B)   basophils
C)   neutrophils
D)   erythrocytes
E)   lymphocytesF) All of the above
G) C) and D)

Question 3

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) None of the above
G) C) and E)

Question 4

Mammal blood serves to transport substances to and from the capillary beds.

Accepted Answer

TRU E
Explanation: The blood of mammals ...

Question 5

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) B) and E)
G) A) and D)

Question 6

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) C) and D)
G) All of the above

Question 7

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 heartbeat.F) B) and D)
G) A) and C)

Question 8

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) C) and D)
G) D) and E) A

Question 9

The function of the lymphatic system is to

Accepted Answer

A)   collect O2-rich blood from below the heart and return it to the right atrium.
B)   carry blood from the heart to the tissues of the body.
C)   collect tissue fluid and return it to the subclavian veins.
D)   collect tissue fluid and return it to the aorta.
E)   collect O2-poor blood from above the heart and return it to the right atrium.F) A) and D)
G) C) and D) C

Question 10

Neutrophils and monocytes are similar in that they both

Accepted Answer

A)   are types of erythrocytes.
B)   result in phagocytized pathogens.
C)   produce antibodies in response to pathogens.
D)   release kinins which attract platelets.
E)   are responsible for specific immunity.F) A) and B)
G) A) and C)

Question 11

The blood vessels to the lungs and back are collectively known as the

Accepted Answer

A)   pulmonary circulation.
B)   systemic circulation.
C)   lymphatic system.
D)   portal system.
E)   oxygen exchange system.F) None of the above
G) A) and E)

Question 12

Which of the following is not true about semilunar valves?

Accepted Answer

A)   One is found at the entrance to the pulmonary trunk.
B)   Their closing causes the second, shorter "dub" sound of the heartbeat.
C)   They connect the atria and ventricles.
D)   One is found at the entrance to the aorta.
E)   They are composed of three half-moon shaped flaps.F) A) and E)
G) A) and B)

Question 13

Which of the following features are incorrectly matched with the type of blood vessel in which it is found?

Accepted Answer

A)   well-developed middle layer with smooth muscle and elastic tissue - arteries
B)   narrow, microscopic tubes of endothelium - capillaries
C)   valves are present insuring one-way flow of blood - veins
D)   thick, well-developed walls due to the presence of a thick layer of smooth muscle - veins
E)   formed from capillaries and join to form veins - venulesF) B) and D)
G) C) and D)

Question 14

The substance indicated by "A" in the figure shown here

Accepted Answer

A)   is composed of formed elements, mostly platelets.
B)   is a fluid and contains nutrients, gases, proteins, and ions.
C)   is composed of formed elements, mostly white blood cells.
D)   is 100% water.
E)   carries most of the oxygen in the blood.F) A) and E)
G) A) and C)

Question 15

Which substance will always leave the tissue fluid and enter the capillary and never go the other way?

Accepted Answer

A)   carbon dioxide
B)   glucose
C)   oxygen
D)   amino acids
E)   waterF) D) and E)
G) All of the above

Question 16

The portion of whole blood indicated by "C" in the figure shown here

Accepted Answer

A)   represents 60% of the sample and is composed of leukocytes and platelets.
B)   represents 45% of the sample and is composed of plasma.
C)   represents 60% of the sample and is composed of erythrocytes.
D)   represents 55% of the sample and is composed of plasma.
E)   represents 45% of the sample and is composed of erythrocytes.F) A) and B)
G) A) and C)

Question 17

The figure shown here represents a four-chambered heart. The blood in the chamber marked by "V"

Accepted Answer

A)   is rich in oxygen.
B)   is poor in oxygen.
C)   will next enter the left atrium.
D)   has come from the pulmonary veins.
E)   has come from the aorta.F) C) and D)
G) B) and E)

Question 18

What is the first step in the formation of a blood clot?

Accepted Answer

A)   The platelets form a plug.
B)   Prothrombin activator is released.
C)   Prothrombin is converted into thrombin.
D)   Fibrin threads are formed.
E)   Red blood cells are trapped in fibrin threads.F) A) and B)
G) B) and E)

Question 19

One of the functions of blood is to help regulate body temperature.

Accepted Answer

A) True 
 B)False  True

Question 20

Blood pressure

Accepted Answer

A)   is highest when the heart relaxes.
B)   can decrease because of atherosclerosis.
C)   can be lowered by the constriction of arterioles.
D)   is considered high when it is above 100/70 mm Hg.
E)   contributes to movement of substances from the blood into the tissues.F) All of the above
G) A) and E)

Exam 23: The Transport Systems

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

Correct AnswerverifiedShow Answer

A lower-than-normal level of _____ can result in an increased clotting time.

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

Mammal blood serves to transport substances to and from the capillary beds.

Correct AnswerverifiedTRU EExplanation: The blood of mammals ...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

The presence of salts and plasma proteins in capillaries causes

Correct AnswerverifiedShow Answer

A heart murmur is caused by

Correct AnswerverifiedShow Answer

A neutrophil

Correct AnswerverifiedA

The function of the lymphatic system is to

Correct AnswerverifiedC

Neutrophils and monocytes are similar in that they both

Correct AnswerverifiedShow Answer

The blood vessels to the lungs and back are collectively known as the

Correct AnswerverifiedShow Answer

Which of the following is not true about semilunar valves?

Correct AnswerverifiedShow Answer

Which of the following features are incorrectly matched with the type of blood vessel in which it is found?

Correct AnswerverifiedShow Answer

The substance indicated by "A" in the figure shown here

Correct AnswerverifiedShow Answer

Which substance will always leave the tissue fluid and enter the capillary and never go the other way?

Correct AnswerverifiedShow Answer

The portion of whole blood indicated by "C" in the figure shown here

Correct AnswerverifiedShow Answer

The figure shown here represents a four-chambered heart. The blood in the chamber marked by "V"

Correct AnswerverifiedShow Answer

What is the first step in the formation of a blood clot?

Correct AnswerverifiedShow Answer

One of the functions of blood is to help regulate body temperature.

Correct AnswerverifiedTrue

Blood pressure

Correct AnswerverifiedShow Answer

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TRU E
Explanation: The blood of mammals ...
View Answer

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A

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C

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True

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