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Flashcards in Lymphatic System Deck (24)
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Lymph

Fluid that drained into vessels of lymphatic system

1

Lymph node

Lymphoid organ that serves as a battleground for immune responses

2

Lymphocyte

A T cell or B cell

3

Antigen

Molecular configuration that certain lymphocytes recognize as nonself and that triggers immune response

4

Phagocyte

Cell that captures prey by phagocytosis, defend and perform cell maintinence

5

Complement proteins

Circulate in inactive form in vertebrate's blood, can promote inflammation, lysis of pathogens, and stimulate phagocytes during nonspecific defenses and immune responses

6

Interferons

Proteins made by host cell to communicate presence of pathogen, inhibit virus reproduction in neighboring cells, 1st line of defense

7

Inflammatory response

Total system response to pathogen, fever
2nd line

8

Cell mediated response

Responding on a cellular level, specialized defense
3rd line

9

T - Lymphocytes

Type of white blood cell
Helper t: makes and secrets chemicals to induce t and B cells to divide
Cycotic t: touch-kills infected body cells, such as cancer

10

Memory T cells

Remember previous infections and then awake to fight and kill them off when they return

11

Helper T cells

Secretes chemics that induce t and B cells to undergo division into effector and memory cells

12

Cytocotic T cells

Touch-kills infected or altered body cells, such as cancer

13

B lymphocytes

Produces antibodies

14

Humoral immunity

Circulation of antibodies, 2nd line, uses B cells

15

Macrophages

Phagocycotic white blood cell, nonspecific defense and immune responses,

16

natural killer cells

Cytotoxic lymphocyte that looks for tumor or virus infected cells and then touch kills them

17

Neutrophils

Most abundant fastest acting WBC, phagocytizes bacteria

18

Basophils

Fast acting WBC, secretions cause vasodilation during inflammatory response

19

Antibodies

Binds to antigen, only made by B cells

20

WBC

Fight disease and take part in defense
Eosinophils neutrophils macrophages t or B cells

21

MHC markers

Marker cells, carry bite of cellular material to cell surface, give cell a fingerprint

22

Histamine

Released into blood during immune responses and allergies

23

Pathogen

Harmful invader, virus or bacteria