Host Immunity 3

Question 1

What are four examples of non-phagocytic cells in the INNATE immune system?

Answer 1

1. basophils
2. eosinophils
3. mast cells
4. natural killer cells

Question 2

What do mast cells and basophils do?

What are some examples?

Answer 2

Release chemicals that promote inflammation

Question 3

What to eosinophils do?

Answer 3

They release antimicrobial peptides, proteins and enzymes that generate reactive oxygen species (ROS)

Question 4

What is inflammation?

What is it initiated by?

Answer 4

Vasodilation

The release of cytokines by the injured or infected cells

Question 5

(T/F) Chronic inflammation can damage host tissues

Answer 5

True!

Question 6

What are the two types of cells found in ADAPTIVE immunity?

Answer 6

B cells

T cells

Question 7

What are B cells responsible for?

Answer 7

the synthesis and release of antibody proteins

Question 8

What are the two classes of T cell?

What does each do?

Answer 8

Regulatory: interact with B cells
Cytotoxic: responsible for killing pathogen-infected host cells

Question 9

Which class of T cell is responsible for killing the infected host cell?

Answer 9

Cytotoxic

Question 10

(T/F) Both B and T cells are developed in the bone marrow

Answer 10

True!

Question 11

What is the difference between the production of B and T cells? (i.e. where they mature)

Answer 11

B cell mature in the bone marrow and are released into the blood stream
T cells mature in the thymus where they finish their process of differentiation