Line 1: Surface Barriers Flashcards
1
Q
Forms a keratinized, layered physical barrier that blocks most pathogens
A
Skin
2
Q
Releases sweat, oils and waxes, often contain chemicals that are toxic to pathogens
A
Skin
3
Q
A break in this allows pathogens to enter
A
The skin
4
Q
Line all body cavities open to the exterior (digestive, reproductive, urinary, and respiratory tracts)
A
Mucus membranes
5
Q
Traps pathogens
A
Mucus membranes
6
Q
In the respiratory tract, cilia in the mucus membranes sweep trapped pathogens toward the mouth, keeping them out of the lower respiratory system
A
Mucus membranes
