Question

A) Put the steps in activation of cellular immunity in the correct order:

1. infected cells are apoptosed

2. cytotoxic T cell is activated

3. it becomes an APC

4. phagocyte encounters antigen

5. helper T cell is activated

B) match each term with its function in normal immunity:

1.cytotoxic T lymphocytes 2. interferons 3. helper T lymphocytes 4. pyrogens 5. plasma cells 6. interleukins 7. NK cells 8. tumor necrosis factor (TNF) 9.dendritic cells 10. colony stimulating factor (CSF) 11.antibodies 12.phagocytes

A. re-set the body's "thermostat" to a higher temperature

B. small proteins produced by infected cells that slow the spread of viral infections

C. stimulate specific responses of both B cells and other T cells

D. non-specifically attack foreign cells, cancer cells, and infected cells

E. stimulate blood-cell-producing colonies in red marrow and lymphocyte-producing colonies in lymphoid tissues

F. produce and secrete antibodies

G. another type of cell, besides macrophage, that become APC's

H. specifically attack and destroy foreign cells or infected cells

I. carry messages between leukocytes and from leukocytes to the body

J. attach to pathogens, starting a chain of events that leads to their destruction

K. attack, "eat", and destroy foreign substances or pathogens

L. multi-purpose immune stimulants named for their tumor-fighting activity but also important in stimulating nonspecific immune activity

Answer 1

A)

- phagocyte encounters antigen

- it becomes an APC

- helper T cell is activated

- cytotoxic T cell is activated

- infected cells are apoptosed

B) match each term with its function in normal immunity:

1.cytotoxic T lymphocytes:-

H. specifically attack and destroy foreign cells or infected cells

2. interferons

B.small proteins produced by infected cells that slow the spread of viral infections

3. helper T lymphocytes

C. Stimulate specific responses of both B cells and other T cells

4. pyrogens:

A.re-set the body's "thermostat" to a higher temperature

5. plasma cells

F. produce and secrete antibodies

6. interleukins

I. carry messages between leukocytes and from leukocytes to the body

7. NK cells

D. non-specifically attack foreign cells, cancer cells, and infected cells

8. tumor necrosis factor (TNF)

L. multi-purpose immune stimulants named for their tumor-fighting activity but also important in stimulating nonspecific immune activity

9.dendritic cells

G. another type of cell, besides macrophage, that become APC's

10. colony stimulating factor (CSF)

E. stimulate blood-cell-producing colonies in red marrow and lymphocyte-producing colonies in lymphoid tissues

11.antibodies

J. attach to pathogens, starting a chain of events that leads to their destruction

12.phagocytes

K. attack, "eat", and destroy foreign substances or pathogens