Immune System

The biochemical changes are complex, and various hepatotoxicants apparently act through:

a. distal axonopathy.

b. different mechanisms.

c. nervous systems.

d. perinuclear changes.

2. Which toxicant causes cholestasis?

a. Methotrexate

b. Urethane

c. Chlorpromazine

d. Calcium sulfate

3. Chronic bronchitis may be caused by:

a. nitrogen gas.

b. nickel.

c. aluminum dust.

d. cotton dust.

4. Which toxic gases can cause cellular damage?

a. Hydrogen and oxygen

b. Ozone and oxides of nitrogen

c. PCB and TCDD

d. Fluoride and arsenic

5. A macrophage is derived from a:

a. monocyte.

b. mast cell.

c. plasma cell

. d. polymorphonuclear cell.

6. The immune system consists of a network of organs including:

a. dermis, epidermis, horny layer, and hair follicle.

b. neurons, axons, myelin sheath, and glutamate.

c. bone marrow, thymus, spleen, and lymph nodes.

d. ovum, ootid, leydig cells, and testis.

7. Which Ig is present on B-cell surface and functions as an antigen receptor?

a. IgA

b. IgD

c. IgE

d. IgG

8. Amphotericin-B induces renal toxicity in a majority of the patients, affecting various:

a. organogenesis.

b. renal structures.

c. cytosine molecules.

d. eschrichia coli.