Which of the following is not a component of the second line of defense?

Name: Which of the following is not a component of the second line of defense?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Keratin is a component of the first line of defense, specifically in the skin and mucous membranes, as it acts as a physical barrier to prevent entry of pathogens. The second line of defense includes complement, inflammation, phagocytosis, and fever, as these are all mechanisms that occur after a pathogen has breached the first line of defense.

Which of the Following Is Not a Component of the Second