LYMPHATIC
LYMPHATIC SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Tears are a chemical barrier to infection.
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True
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False
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -Both tears and saliva have enzymes that destroy bacterial cells by breaking down their cell walls. These enzymes are called lysozymes . Like stomach acid, they are a form of chemical defence against infection.
Detailed explanation-2: -Physiological barriers include body temperature, pH and other body secretions that prevent the growth of any microorganisms entering the body. Barrier created by saliva and tears is related to physiological barriers.
There is 1 question to complete.