Body defenses study quiz

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Fever _______. causes the liver to sequester iron & zinc. decreases the metabolic rate of the body to conserve energy. directly kills pathogens by over-heating them. is a higher than normal body temperature that is always dangerous.

a

The redness and heat of an inflamed area are due to a local hyperemia caused by ___________. vasodilation vasoconstriction phagocyte mobilization complement production

a

Cells that can mount a faster and more powerful immune response when re-exposed to antigens: antigenic cells macrophages memory cells plasma cells T lymphocytes

c

Which of the following is associated with passive immunity? exposure to an antigen infusion of weakened viruses passage of IgG antibodies from a pregnant mother to her fetus booster shot of vacine

c

Which of the following is a part of the second line of defense against microorganisms? keratin cilia gastric juice phagocytes

d

Which of the following is NOT a surface membrane defense? mucous membranes respiratory mucus skin stomach acids tonsils

e

Cells that produce MOST antibodies: antigenic cells macrophages memory cells plasma cells T lymphocytes

? not B

Cells that control the immune response: A. helper T lymphocytes B. killer (cytotoxic) T lymphocytes C. macrophages D. plasma cells E. regulatory (supressor) T lymphocytes

A

Non-specific (innate) defenses include _______. a. B cells b. phagocytosis c. plasma cells d. T cells

B

Which of the following is NOT one of the cardinal signs of inflammation? heat fever pain redness swelling

B

__________ immunity is a mechanism by which the immune system protects us. Antigenic Cell-mediated Inflammatory Lymphocytic Platelet-derived

B

Macrophages are derived from: basophils fibroblasts lymphocytes monocytes phagosomes

D

Which of the following is not a characteristic of the adaptive immune system? It is antigen-specific It is systemic It has memory It is specific for a given organ

D

Cells that provide cell-mediated immunity: B lymphocytes fibroblasts granulocytes natural killer cells T lymphocytes

E

One of the body's first lines of defense: complement system fever immune system interferons mucous membranes

E

Cells that DIRECTLY attack pathogens: helper T lymphocytes keratinocytes killer (cytotoxic) T lymphocytes plasma cells regulatory (suppressor) T lymphocytes

C.

T/F: Substances capable of triggering the adaptive immune system and provoking an immune response are called antigens.

True

T/F: Soluble proteins secreted by plasma cells are called antibodies.

True

Chemicals that illicit (trigger) an immune response: antibodies antigens interferons lymphokines protogens

b


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