NUTRITION
THE HUMAN BODY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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How does skin protect the body from pathogens?
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It transfers pathogens to lymph and blood plasma
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It traps pathogens in oil and sweat produced by glands.
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It produces white blood cells that recognize and eat pathogens
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It has hairs that sweep pathogens away from the body.
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Explanation:
Detailed explanation-1: -Normally the external surface of the skin is dry so microbes can’t grow on it. Microbiota of the skin acts against pathogens and inhibits their growth by producing anti-microbial chemicals. Sebum secreted by sebaceous glands of the skin form a protective layer of skin.
Detailed explanation-2: -The epidermal barriers of the skin serve as the first layer of defense by limiting the physical access of many pathogens to the blood circulation. In addition, sweat glands secrete a wide array of antimicrobial peptides, which restrain the growth of various microbes on the skin.
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