disease & immunity Flashcards
1
Q
What’s a pathogen?
A
a disease causing organism
2
Q
EX of direct contact
A
semen,blood
3
Q
ex of indirect contact
A
lakes,surfaces,mosquitos
4
Q
mechanical barriers
A
skin, hair
5
Q
chemical barriers
A
mucus, hcl acid In stomach
6
Q
3 ways of disease prevention
A
-hygenic food prep
-wash hands with bacteria killing soaps
etc….
7
Q
what is active immunity?
A
when a pathogen enters the body , the body makes memory cells and antibodies
8
Q
example of active immunity
A
vaccination
9
Q
passive immunity
A
antibodies pass form mother to infant though breast milk
10
Q
p
A
11
Q
Outline the process of cholera affecting the body.
A
- Bacteria attaches to the cells of the intestine wall.
2.bacteria produce toxins which causes chloride ions to be releases into the lumen of the intestine.
3.Chloride iOS lower water potential and cause blood to be deficient in chloride ions and water.
CAUSES DIAHRREA
12
Q
A
