The summary lists four barriers of the human body to minimize pathogen entry: skin, mucous membranes, eyelashes/nose hair, and tears.
O resumo lista quatro barreiras do corpo humano para minimizar a entrada de patógenos: pele, membranas mucosas, cílios e pelos nasais, e lágrimas.
| Front | State 4 barriers the human body has to minimise the entry of pathogens into our cells. |
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| Back | Barriers:
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