15535259
Beschreibung
Mindmap von Zita Wormuth, aktualisiert more than 1 year ago
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Erstellt von Zita Wormuth
vor fast 6 Jahre
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Body's External Defense Mechanisms
- Skin: Provides an impervious barrier so entry of
micro-organisms is stopped. Bacteria on the skin
also prevent establishment of pathogens. Sebum
and sweat secreted to the surface of the skin
prevent growth and kill pathogen
- Eyes: Tears contain lysozyme,
an enzyme that kills bacteria
- Ears: Cerumen (ear wax) inhibits
bacterial growth
- Nasal Cavity: Hairs
and mucous trap
micro-organisms
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