Final 4.2

Question 1

What does the physical barriers do ?

Answer 1

Epithelium layer

Keeps hazardous organisms an materials outside the body

Question 2

What does phagocytes do

Answer 2

Eat infection

• engulf pathogens and cell debris
• mircophages; WBCs : neutrophils, eosinophils
• marcophages; fixed or free

Question 3

What does interferons do

Answer 3

Chemical signaling to stop replication

Active more NK and marcophages

Question 4

What does complement do

Answer 4

• works with antibody system

- consist of circulating proteins that assist antibodies in destruction of pathogens

Question 5

What does inflammatory response do

Answer 5

Is a localized, tissue-level response that tends to limit the spread of an injury or infection

Question 6

What does a fever do

Answer 6

Is an elevate body temp that accelerate tissue metabolism and activity of defenses

Question 7

What does adaptive (specific) immunity consist of

Answer 7

• triggered by specific pathogens
• T-cells target and attack, also active B-cells
• B-cells design antibodies specific for each infection

Question 8

What tiggers the T-cells

Answer 8

Antigens

Question 9

What are antigens

Answer 9

Proteins that are found in surface of cell

-“surface labels” that identify a cell
-T-cells
•respond to foreign antigens
•ignores your own antigens

Question 10

What do most of your cells contain

Answer 10

Type 1 MCH

Question 11

What are the 7 innate defenses

Answer 11

Physical barrier
Phagocytes

Interferons
Complement
Inflammatory response
Fever

Question 12

What do antigens bind to?

Answer 12

Antigens bind to B-cells and then T-cells bind to B-cells and actives it causing it to become a memory B-cell or evolves into plasma cell