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BIOLOGY 1103 > Immunity > Flashcards

Flashcards in Immunity Deck (20):
1

Innate (non-specific immunity)

External physical barriers or chemical barriers by the skin a mucous membranes.
Includes: antimicrobial substances, killer cells, phagocytes, inflammation and fever

2

Adaptive immunity

The ability of the body to defend itself against specific invading agents such as bacteria, toxins, viruses and foreign tissues.

3

Antigens

Recognized as foreign and provoke an immune response

4

Where do B-Cells develop?

In the red bone marrow. Mature there throughout life.

5

Where do t-cells develop?

In the red bone marrow, but mature in the thymus. Hence, *T* cells.

6

Cell Mediated immunity

T-cells
Cytotoxic T-cells kill invading antiges directly

7

Humoral immunity

B-cells transform into plasma cells, which synthesize and secrete specific proteins called ANTIBODIES or IMMUNOGLOBINS

8

Immunocompetence

The ability to carry out adaptive immune responses

9

Major histocompatibility

The ability of the immune system to distinguish self from non-self.

10

WBCs of Innate immunity

Neutrophils
Basophils
Eosinophils

11

Function of Neutrophils

Phagocytic. Secrete lysozome (antibacterial)

12

Function of Eosinophils

Phagocytic. Control inflammatory response and anti-parasitic actions.

13

Function of Basophils

NOT phagocytic. Engages in inflammatory response.

14

Adaptive immunity cells

Lymphocytes
Monocytes

15

Function of Lymphocytes

B-Cells: Produce antibodies (as plasma cells)
T-Cells: Recognize and kill foreign cells

16

Function of monocytes

Precursor to macrophages

17

Cytotoxic T-Cell

Kills infected or altered host cell

18

Helper T-Cell

Stimulates activation of B-cells and T-cells

19

B-Cell

Activates into memory B cells or plasma cells

20

Plasma cell

secretes antibodies