What is the first layer of defense against pathogens in humans?

Question

Oreo1234 · Answer

innate immune system

JordynTheAlien · Answer

The first line of defense is your innate immune system. Level one of this system consists of physical barriers like your skin and the mucosal lining in your respiratory tract. The tears, sweat, saliva, and mucous produced by the skin and mucosal lining are part of that physical barrier, too

Alexis1415 · Answer

@jordynthealien wrote:

The first line of defense is your innate immune system. Level one of this system consists of physical barriers like your skin and the mucosal lining in your respiratory tract. The tears, sweat, saliva, and mucous produced by the skin and mucosal lining are part of that physical barrier, too

Can you please list your source? Also thank you oreo and jordyn!!

JordynTheAlien · Answer

@alexis1415 wrote:

@jordynthealien wrote:

The first line of defense is your innate immune system. Level one of this system consists of physical barriers like your skin and the mucosal lining in your respiratory tract. The tears, sweat, saliva, and mucous produced by the skin and mucosal lining are part of that physical barrier, too

Can you please list your source? Also thank you oreo and jordyn!!

https://letstalkscience.ca/educational-resources/stem-in-context/immune-response

JordynTheAlien · Answer

And ofc.