Lines of deffence against pathogens and Antogens Flashcards
1
Q
What is a pathogen?
A
A living thing that can cause infections
2
Q
What is an antigen?
A
A non-living thing that causes infections
3
Q
What is your bodies first line of defence?
A
Skin, sweat, oils, mucus, stomach acid, and silica
4
Q
What is your bodies two immune responses/second line of defence?
A
inate imune response
acwired imune responce
5
Q
What happens with an innate immune response?
A
- Fever, inflammation
- Phagocytes engulf pathogen
(fag-“o”-sites)
6
Q
What happens with an acwired inate responce?
A
- Helper T-Cells recognize the antigen
- signals B-Cells and Killer-T-Cells
- B-Cells produce antibodies that bind pathogens, which then are eliminated.
- B-cells turn into Memory B-cells, ready to produce antibodies for the same pathogen in the future
- Killer-T-Cells attack and destroy
7
Q
What is an acquired innate response?
A
A response to a specific type of pathogen that has entered the body before
8
Q
What is an inate imune responce?
A
A response towards an unknown pathogen that has not invaded the body before
9
Q
What cells are carried in the blood to fight infections?
A
White blood cells
