Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
27 Cards in this Set
- Front
- Back
|
Germ Theory |
States that diseases are caused by microscopic particles called pathogens |
|
|
Pathogen |
Agent that causes disease |
|
|
Vector |
Organism, such as a mosquito or tick, that transfers pathogens from one host to another |
|
|
Immune System |
Body system that fights off infections |
|
|
Phagocyte |
Cell that destroys other cells by surrounding and engulfing them |
|
|
T Cell |
White blood cell that matures in the thymus and destroys infected body cells by causing them to burst |
|
|
Antiseptic |
Chemical, such as soap, vinegar, or rubbing alcohol that detritus pathogens outside the body |
|
|
Antibody |
Protein produced by B-cells that aids in destruction of pathogens |
|
|
Interferon |
Type of protein produced by body cells that prevents viruses from replicating in infected cells |
|
|
Passive Immunity |
Occurs without the body undergoing an immune response |
|
|
Active Immunity |
Occurs after the body responds to an antigen |
|
|
Inflammation |
Immune response that is characterized by swelling, redness, pain and itching |
|
|
Antigen |
Protein marker that helps the immune system identify foreign particles |
|
|
Memory Cell |
Specialized white blood cell that contributes to acquired immunity by acting quickly to a foreign substance that infected the body previously |
|
|
Cellular Immunity |
Response that relies on T cells to destroy infected body cells |
|
|
Humoral Immunity |
Immune response that relies on B cells to produce antibodies to help fight infection |
|
|
Tissue Rejection |
Process by which a transplant recipient's immune system makes antibodies against the protein markers on the donor's tissue; can result in destruction of the donor tissue |
|
|
Antiseptic |
Chemical, such as soap, vinegar or running alcohol, that destroys pathogens outside the body |
|
|
Antibiotic Resistance |
Process by which bacteria mutate so that they are no longer affected by an antibiotic |
|
|
Vaccine |
Substance that stimulates an immune response, producing acquired immunity without illness or infection |
|
|
Allergy |
Immune response that occurs when the body responds to a non-disease causing antigen, such as pollen or animal dander |
|
|
Allergen |
Antigen that does not cause disease but still produces an immune response |
|
|
Anaphylaxis |
Severe allergic reaction that causes airways to tighten and blood vessels to leak |
|
|
Leukemia |
Cancer of the bone marrow that weakens the immune system by preventing white blood cells from maturing |
|
|
Opportunistic Infection |
Infection caused by a pathogen that a healthy immune system would normally be able to fight |
|
|
Human Immunodeficiency Virus (HIV) |
Virus that weakens the immune system by reproducing in and destroying T cells |
|
|
Acquired Immune Deficiency Syndrome (AIDS) (Caused by HIV) |
Condition characterized by having several infections and very few T cells; caused by HIV |
