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The chordae tendineae anchor the semilunar valves to the walls of the ventricles.

A) True
B) False

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An increased firing of the parasympathetic nervous system causes increased cardiac output.

A) True
B) False

Correct Answer

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Match the following: -These vessels have thinner walls and transport oxygen-poor blood


A) capillaries
B) arteries
C) veins

D) A) and B)
E) All of the above

Correct Answer

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Match the following: -These vessels have thicker walls and a heavier tunica media


A) capillaries
B) arteries
C) veins

D) None of the above
E) All of the above

Correct Answer

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   Using Figure 12.1, identify the following: -A lymph node is indicated by ________. A)  Label A B)  Label B C)  Label C D)  Label D E)  Label E Using Figure 12.1, identify the following: -A lymph node is indicated by ________.


A) Label A
B) Label B
C) Label C
D) Label D
E) Label E

F) A) and D)
G) A) and C)

Correct Answer

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Allergies, or hypersensitivities, are normal immune responses.

A) True
B) False

Correct Answer

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Which of the following substances is NOT likely to trigger the immune response?


A) pollen grains
B) bacteria
C) self-antigens
D) fungi
E) virus particles

F) A) and B)
G) B) and C)

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Lymph is largely composed of water that has escaped from ________.


A) cytosol
B) cerebrospinal fluid
C) saliva
D) tears
E) blood

F) B) and E)
G) All of the above

Correct Answer

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The flaplike opening in the interatrial septum of the fetus through which blood is shunted directly from the right atrium to the left atrium is the ________.


A) ductus arteriosus
B) ligamentum arteriosum
C) ductus venosus
D) foramen ovale

E) B) and C)
F) A) and C)

Correct Answer

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Xenografts are ideal donor organs or tissues since they rarely cause rejection.

A) True
B) False

Correct Answer

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Match the following: -Blood pressure in these vessels is low or even negative


A) capillaries
B) arteries
C) veins

D) All of the above
E) B) and C)

Correct Answer

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Match the following: -Semilunar valves are forced open as pressure in the heart rises


A) systole
B) diastole

C) A) and B)
D) undefined

Correct Answer

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Troublesome small molecules or incomplete antigens that may mount an attack that is harmful rather than protective are called ________.


A) haptens
B) antibodies
C) pyrogens
D) interferons

E) B) and C)
F) A) and C)

Correct Answer

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Which lymphoid tissues trap and remove bacteria entering the throat?


A) axillary lymph nodes
B) cervical lymph nodes
C) tonsils
D) Peyer's patches
E) thymus gland

F) A) and B)
G) A) and E)

Correct Answer

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Exchanges between blood and tissue cells occur in capillary beds.

A) True
B) False

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Capillaries are composed only of tunica intima.

A) True
B) False

Correct Answer

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The umbilical vein carries ________.


A) metabolic wastes and carbon dioxide from the fetus to the placenta
B) metabolic wastes and carbon dioxide from the placenta to the fetus
C) oxygen and nutrients from the fetus to the placenta
D) oxygen and nutrients from the placenta to the fetus
E) blood from the navel into the inferior vena cava

F) B) and D)
G) D) and E)

Correct Answer

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Which of the following is often used to treat allergies?


A) corticosteroids
B) antihistamines
C) blood transfusions
D) bone marrow transplants
E) immunosuppressor drugs

F) All of the above
G) B) and D)

Correct Answer

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Allergic contact dermatitis following skin contact with poison ivy would normally lead to ________.


A) immediate hypersensitivity
B) acute hypersensitivity
C) delayed hypersensitivity
D) anaphylactic shock
E) immunodeficiency

F) A) and E)
G) B) and C)

Correct Answer

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The flow of blood through a capillary bed is called ________.


A) pulmonary circulation
B) hepatic portal circulation
C) systemic circulation
D) microcirculation

E) A) and D)
F) B) and D)

Correct Answer

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