Immune and lymphatic system I Flashcards Preview

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Flashcards in Immune and lymphatic system I Deck (135)
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1

What kind of immunity lacks immune specificity and memory

Innate Immunity

2

What is innate immunity's "response"

Inflammation

3

What are the first responders in innate immunity

Neutrophils

4

What kind of immunity develops in response to antigens

Acquired immunity

5

Is acquired immunity more powerful than innate immunity

Yes

6

Does acquired immunity take longer to develop than innate

Yes

7

What kind of immunity displays specificity and memory

Acquired immunity

8

Temporary immunity due to donated antibodies (i.e., Transplacental passing of maternal antibodies to fetus)

Passive immunity

9

Long-lasting/permanent immunity due to self exposure to antigen resulting in memory T cells and B cells specific for antigen

Active immunity

10

Antibody-mediated immunity (Plasma cells)

Humoral immunity

11

T cells, B cells and antigen-presenting cells

Cell-mediated immunity

12

Examples of primary lymphoid organs

Thymus and bone marrow

13

Examples of secondary lymph organs

Lymph nodes, spleen, tonsils

14

Lymphocytes originate in _____ lymphoid organs and then take up residence in _____ lymphoid organs

primary, secondary

15

In primary lymphoid organs precursor cells mature into_______. Each cell is programmed to recognize

immunocompetent cells, a specific antigen

16

In secondary lymphoid organs trapped antigens

stimulate clonal expansions of mature T and B cells

17

Lymphoid tissue appears in the body as a _____ from ______ lymphoid tissue to _____ lymphoid tissue to ______

gradient, diffuse, aggregated, lymphoid organs

18

Are lymph follicles (nodules) enclosed within a capsule

No

19

Lymph follicles (nodules) occur _____ or in ______

singly or in aggregates

20

Lymph follicles (nodules) are sites of _____ localization and proliferation

B cell

21

What are the sites of B cell localization and proliferation

Lymph follicles (nodules)

22

Are lymph follicles (nodules) transient

yes

23

are spherical, tightly packed accumulations of virgin B cells and dendritic reticular cells that have not been exposed to antigens

Primary follicles (nodules)

24

Are derived from primary follicles that have been exposed to non self antigens

Secondary Follicles (nodules)

25

Are secondary follicles (nodules) present at birth

No

26

What are the two structural components of a secondary lymph follicle (nodule)

-Corona (cortex)
- Germinal Center

27

The Corona (cortex) of a secondary lymph follicle has what appearance and composition

-darker peripheral region
- Composed of densely packed B lymphocytes

28

The Germinal Center of a secondary Lymph Follicle (nodule) has what appearance and composition

-Central, lighter stained region
-Composed of B lymphocytes, memory B cells, plasma cells, dendritic reticular cells which function as antigen-presenting cells

29

Explain the vascular supply of a secondary lymph follicle (nodule)

-Arteriole and venue supply the cortex
- Another arteriole and venue supply the center
- Lymph Capillaries are not present

30

Diffuse lymphoid tissue is made up of

scattered clusters of plasma cells, macrophages, and lymphocytes located in the CT Stroma and various other sites