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23 Cards in this Set

  • Front
  • Back

Hallmark of the immune system?

Self vs. Non Self (what's you and what's not you)

Three characteristics for an antigen to be immunogenic?

Large
Foreign
Complex

Cells are ________ of antigens
Antigens are ^ of ________

Cells are mosaics of antigens
Antigens are mosaics of epitopes

Marker of Identity
Different shapes, sizes, thousands
Expression of genes that helps identify who you are

Antigen

Why wouldn't an O antigen cause a response?

It's not big or complex enough

A, B, and O are all _______
But only A and B are _______

antigens, immunogens

Two divisions of the immune system?

Innate and acquired



Innate: No immunological memory
Acquired: Each exposure to immunogen stimulates immunological memory mechanism (BIGGER, QUICKER RESPONSE)

What WBCS are associated with each division of the immune system?

Innate = Segmented Neutrophils
Acquired = Lymphocytes

What are the two divisions of the acquired division of the immune system?

Humoral (Antibodies method of attack)
Cell-Mediated (Attach to foreign bodies and attack, perforate cell PERFORIN)

What is the method of attack for the innate immune system? WBC?

Segmented Neutrophils
Phagocytosis of foreign things
Same level of response, no memory

Major Cell of Humoral?
Major Cell of Cell of Cell-Mediated?
Shared Cell?

B-Cell (B Lymphocyte)
T Helper
Tc (Cytotoxic)

Central Lymphoid organs?
Peripheral Lymphoid organs?

Central: Bone marrow and Thymus
Peripheral: Nodes Spleen Tonsils




(Thymus is dorsal to sternum)

What occurs in the central lymphoid organs?
Peripheral lymphoid organs?

Central = Lymphocytes gain specialty (making antibodies, perforin, etc)

Peripheral = Specialized cells do their work

What does the bone marrow produce? what does the thymus produce?

Bone marrow = Immunocompetent (committed) B Cells
Progenitor T-Cells

Thymus = Immunocompetent (committed) t cells

What are the types of T-cells? What do they use?

Cytotoxic (TC)
T-Helper (TH)

Perforin

Another name/abbreviation for antibody?

Immunoglobulin (ig)

What does a committed B-Lymphocyte do that a non-committed can't do?

It has immunological memory that recognizes antigens

What happens during Clonal Selection?

Proliferation (Dividing)
Differentiation (Form more highly specialized cells)

Committed lymphocytes differentiate into what two types of cells?

Effector cells - Make antibodies, respond to infection. Fight immediately.




Memory cells - High affinity for next exposure. Don't fight the first time but wait for next exposure.

What does AIDS/HIV stand for?

AIDS = Acquired immune deficiency syndrom
HIV = Human immuno-deficiency virus

What portion of the immune system does aids/hiv attack?

Acquired

Two serological diagnostic tests for HIV?

ELISA - Take serum and look for IG against HIV

Western Blot - Looks for protein of HIV

Drugs to combat aids?

Inhibitor of reverse transcriptase (humans don't have this)
Inhibitor of protease