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# Worksheet 3 ## Describe the barriers of the innate immune system. Give the mechanism for each example. ## Which barriers are associated with the oral cavity? | Description of barrier | Barrier | Mechanism | Example | |---|---|---|---| | Anatomic: | Skin | Initial mechanical barrier- stops influ...

# Worksheet 3 ## Describe the barriers of the innate immune system. Give the mechanism for each example. ## Which barriers are associated with the oral cavity? | Description of barrier | Barrier | Mechanism | Example | |---|---|---|---| | Anatomic: | Skin | Initial mechanical barrier- stops influx of pathogens | Externally all over body | | | Mucous membrane | -Normal flora compete with microbes for attachment sites. -Mucous entraps foreign microbes -Cilia propel microbes out of body | -mucous membrane sites -nose - respiratory tract | | Physiological: | Temperature | -Body temperature/fever response can inhibit pathogen proliferation | body |