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Flashcards in nursing science lecture 2 Deck (14):
1

antigen

molecular marker on cell that make it visible to the immune system

2

immunocompetence

capacity to make an effective response to antigen

3

cytokine

give eg.

chemicals released from cells to trigger or regulate innate and adaptive immune responses, also participate in innate immunity

eg.interleukins (ILs), leukotrienes, and interferons (IFNs)

4

name 3 lines of defence

1. barriers
2. inflammation eg phagocytosis
3. adaptive eg natural killer cells

can occur concurrently

5

chemotaxis

movement directed by chemical attraction

6

diapedesis

movement of phagocytes from blood vessel to inflammation site

7

complement

Group of plasma proteins (inactive enzymes) that produce a cascade of chemical reactions that ultimately causes lysis (rupture) of a foreign cell; the complement cascade can be triggered by adaptive or innate immune mechanisms

2.triggers complement cascade resulting in MAC (membrane attack complex)

8

lysis

rupture of foreign cell

9

complements can act as
1.
2.

1. anaphylatoxins to trigger inflammatory réponses
2. as an opsonin to mark microbes for phagocytosis

10

Inflamatory response function

to isolate pathogens and stimulate speedy arrival of large numbers of immune cells

11

neutrophil

first on the scene of inflammatory response. Leukocytes

12

macrophage

enlarged monocytes capable of consuming many pathogens, can be specific to body area

13

interferon

protein produced by cells after viral infection to inhibit spread

14

Exam question? 3 lines of immune defence

1. barrier
2. inflamatory
3. adaptive