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Sequence No.

BIO-585

Many microbial pathogens enter the gut of human along with food. What are the preventive barriers to protect the body from such pathogens? What type of immunity do you observe in this case?

 

Answer:

Preventive barriers against microbes entering along with food:

  • Saliva in mouth and HCl in gastric juice kill bacteria in food and prevent microbial growth in buccal cavity and stomach.
  • The mucus secreted by goblet cells in lining of alimentary canal forms a coating on the epithelial lining of gut and traps microbes entering along with food. Immunity of this type called innate immunity.
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BIO-585

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