Pathophys Test 2

What is the role of antibodies vs. T-lymphocytes in immune response? (p.1-5)
- Antibodies (Class II antigens) – prevent disease
- o Not MHC restricted
- o B-cells mature in lymphoid tissue and circulate in plasma as mature B-cells
- o Once exposed to antigen, turn into plasma cells and secrete antibodies
- T-lymphocytes (Class I antigens) – help recover from infection
- o Responsible for cellular immunity
- o MHC restrictive
- o Must be exposed to antigens in order to be educated and reactive
Between antibodies and T cells, which ones would be responsible for person’s recovery from most viral infections?

T-lymphocytes
What about prevention of disease process?

B-lymphocytes –antibodies
Are antibodies able to bind circulating free antigens?

Yes. Antigens bind to FC receptor on antibody.
Are T cells able to bind circulating free antigens?

No. T-cells attack antigen-infected cells to aid recovery.

Author

cgordon05

12580

Card Set

Pathophys Test 2

Description

Antibodies and T Lymphocytes

Updated

2010-03-31T02:38:13Z