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प्रश्न
How does saliva act in body defence?
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उत्तर
Saliva acts as a self defence by preventing the entry of bacteria and fungi in mouth. Also saliva cuts as a barrier against irritants, toxins etc. Saliva also acts as a healing agent for cut and wounds.
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संबंधित प्रश्न
Colostrum provides ____________.
All are peripheral lymphoid organs except ____________.
In agglutination and precipitation reactions, the antigen is a ____________ and ____________ respectively.
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Allergy involves
Given below are some human organs. Identify one primary and one secondary lymphoid organ. Explain its role.
Liver, thymus, stomach, thyroid, tonsils
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