innate immunity Flashcards
1
Q
the body has how many lines of defense?
A
3
2
Q
1st line of defense is …
A
Skin and Mucosa
3
Q
what happens when microbes meet skin?
A
good barrier to entry
4
Q
good barrier to entry
A
microbes die, or become part of either transient or long-term flora on skin surface
5
Q
skin
A
dry already colonized
layers of dead skin cells
low PH
6
Q
mucosa
A
found in Gi, respiratory, and genitourinary tracts.