MEDICINE MCQ
INFECTIOUS DISEASES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Lymphocytes and phagocytes
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Antibodies and lymphocytes
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The skin and mucous membranes
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The circulatory system
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Detailed explanation-1: -The skin and mucous membranes form a primary defence against pathogens that cause infectious disease. Cuts in the skin are sealed by blood clotting.
Detailed explanation-2: -Skin and mucous membranes are physical barriers against infection from pathogens. Skin is constantly replacing its outermost epidermal layer of skin. These dead cells provide effective protection against foreign pathogens. Skin also secretes a substance called sebum to lubricate the skin.
Detailed explanation-3: -Skin is a barrier that serves as one of the body’s first lines of defense against harmful microbes. Specialized immune cells within skin tissue help to fight invading organisms. Yet the skin hosts diverse communities of beneficial bacteria, collectively known as the skin microbiota.