Check sibling questions

Humans have innate immunity for protection against pathogens that may enter the gut along with food. What are the two barriers that protect the body from such pathogens? 

Answer

Microbial pathogens enter the gut of humans along with food:  

  • Physical barriers: Mucus coating of the epithelium lining the gastrointestinal tract helps in trapping microbes entering our body. 
  • Physiological barriers: Acid in the stomach, saliva in the mouth prevent microbial growth.

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Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.