Innate Immunity Flashcards

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1
Q

Skin and mucous membranes (epithelial cells)

A

Mechanical defenses; e.g. washing hands, sweating

Chemical defenses; e.g. low pH,

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2
Q

Mucosal-associated lymphoid tissue (MALT)

A

Mechanical and chemical defenses

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3
Q

SALT: skin associated lymphoid tissue

A

Mechanical and chemical defenses

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4
Q

GALT: gut associated lymphoid tissue

A

Mechanical and chemical defenses

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5
Q

BALT: bronchial associated lymphoid tissue

A

Mechanical and chemical defenses

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6
Q

Diffuse tissues of the urogenital systems

A

Mechanical and chemical defenses

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7
Q

Phagocytic cells

A

Phagocytosis: ingest and kill bacteria and fungi

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8
Q

• neutrophils

A

Ingest and kill bacteria

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9
Q

• macrophages

A

Ingest and kill foreign cells

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10
Q

Proinflammatory cells

A

Induce host defenses and inflammation

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11
Q

macrophages

A

Strategic participants in certain specific immune

reactions

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12
Q

• mast cells

A

Trigger local inflammatory reactions and responsible for

many allergic symptoms

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13
Q

• eosinophils

A

Active in worm and fungal infections, allergy, and

inflammatory reactions

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14
Q

• basophils

A

Function in inflammatory events and allergies

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15
Q

platelets

A

Involved in blood clotting and inflammation

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16
Q

Natural killer (NK) cells

A

Kill virus-infected host cells and tumor cells

17
Q

Antigen-presenting cells

A

Recognize, process, and present antigens to

lymphocytes. Initiate adaptive immune responses.

18
Q

• dendritic cells

A

Responsible for processing foreign matter and

presenting it to lymphocytes

19
Q

macrophages

A

Strategic participants in certain specific immune

reactions

20
Q

Anitmicrobial peptides

A

Kill microorganisms

21
Q

Complement

A

Enhances phagocytosis (opsonization)
Induces inflammation
Kills some microorganisms

22
Q

Cytokines

A

Activate innate and adaptive defenses

23
Q

Chemokines

A

Attract leukocytes

24
Q

Kinins

A

Induce inflammation

25
Q

Acute phase proteins

A

Enhance cellular and humoral defenses

26
Q

Enzymes

A

Kill and digest microorganisms

27
Q

Increased blood supply (erythema)

A

Brings more antimicrobial cells and proteins to the site

of infection

28
Q

Increased vascular permeability (edema)

A

Brings more antimicrobial proteins to the site of

infection

29
Q

Chemotaxis (induration)

A

Infiltration of infection site with white cells

30
Q

Fever

A

Increased body temperature to inhibit microbial growth

and limit iron availability