BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS
LYMPH NODES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Skin, mucus, hairs, and sebaceous secretions all contribute to the effectiveness of which type of nonspecific defense?
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Interferons
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Complement System
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Physical Barriers
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Phagocytes
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Explanation:
Detailed explanation-1: -Physical barrier Moreover, components that are secreted by the skin or mucosa, such as sweat, saliva, tears, mucous, help provide a basic barrier against invading pathogens.
Detailed explanation-2: -The first line of defence is non-specific and aims to stop microbes from entering the body. The skin and mucous membranes act as a physical barrier preventing penetration by microbes. If the skin is cut then the blood produces a clot which seals the wound and prevents microbes from entering.
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