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Question : Mention the types of Inborn defense mechanism with an example each.

Answer»

SOLUTION :i. Physical Barriers : They include the skin and the mucus coated epithelium of respiratory, gastro - intestinal and urinogential tracts, where the mucus helps in trapping the microbes.
ii. Physiological Barriers : They include
a. Acid of the stomach
b. Lysozyme in saliva, tear etc, they prevent the MICROBIAL GROWTH.
iii. Cellular Barriers : They include the following specialised cells, which phagocytose and DESTROY the microbes.
a. Natural KILLER lymphocytes
b. Neutrophils.


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