A nurse explains that the skin and intact mucous membranes are part of which type of body defence?
Correct answer: A. Innate immunity
- A. Innate immunity
- B. Passive immunity
- C. Humoral memory
- D. Acquired antibody transfer
Explanation
Skin and mucous membranes provide nonspecific barriers that act before exposure to a particular antigen, so they are components of innate immunity. Passive immunity involves receiving antibodies from another source rather than using physical barriers.
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About Blood and Immunity
Blood and immunity covers plasma, red blood cells, white blood cells, platelets, haemoglobin, blood groups and haemostasis. It explains innate and adaptive defenses, antibodies, lymphocytes, inflammation, vaccination and immune memory, with a distinction between active and passive immunity and between antigen and antibody.
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