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;
12 Cards in this Set
- Front
- Back
What is your first line of defense in your immune system?
|
The skin (a physical barrier) and the linings of all internal body systems
|
|
What is your second line of defense in your immune system?
|
The two responses - innate immune response and acquired immune response
|
|
What is an innate immune response?
|
A quick, general immune response that all living things are born with
|
|
What is an acquired immune response?
|
A highly specific attack on a pathogen or antigen by the creation of antibodies to fight it
|
|
How does an acquired immune response work?
|
The pathogen enters the body and the phagocyte engulfs if and puts its antigens on the outside. Then the white blood cell creates more T cells who signal the B cells to make antibodies. The antibodies clump the antigens together and then are destroyed by the killer T cells. Some antibodies remain on the B cells for future use.
|
|
What are B cells?
|
A type of white blood cell that recognizes antigens present in the body and produces specific antibodies to fight them
|
|
What are T cells?
|
Specialized white blood cells that fight disease either by activating B cells (helper T cells) or by attacking antigens directly (killer T cells)
|
|
What are vaccines?
|
A special version of an antigen that provides immunity against a disease
|
|
What are allergens?
|
Any substance that causes an allergic reaction
|
|
What is histamine?
|
A chemical released by the body in response to an injury or allergen; can cause symptoms such as a runny nose and watery eyes
|
|
What is AIDS?
|
Acquired Immunodeficency Syndrome - a virus that targets the immune system by infecting helper T cells
|
|
What is the phagocyte?
|
A type of white blood cells that fight disease either by activating B cells (helper T cells) or by attacking antigens directly (killer T cells)
|