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Intrinsic Barriers Skin and Mucus Membranes Quiz

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Intrinsic Barriers Skin and Mucus Membranes Quiz

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Questions and Answers

What is the role of Natural Killer Cells in the immune system?

Phagocytose pathogens

Enhance inflammation in infected areas

Secrete toxic chemicals or induce apoptosis in target cells (correct)

Produce antibodies against pathogens

Which of the following is NOT a mechanical expulsive force acting as an intrinsic barrier in the immune system?

Coughing

Vomiting (correct)

Sneezing

Defecation

What is the primary function of tight junctions in epithelium as mentioned in the text?

Induce inflammation in response to infections

Secrete toxic chemicals to kill pathogens

Promote the attachment of pathogens to host tissue

Prevent pathogens from slipping between cells (correct)

Which of the following is a role of commensal flora in the immune system?

Competing with pathogens for resources Signup and view all the answers

What is the main feature of Adaptive Immunity as described in the text?

Broad specificity and memory Signup and view all the answers

Which type of immunity involves the production of soluble immunoglobulins or antibodies?

Humoral Response Signup and view all the answers

What initiates fever as a systemic response to infection?

Pyrogens Signup and view all the answers

What do interferons released by infected cells do according to the text?

Induce neighboring cells to produce antiviral proteins Signup and view all the answers

What is the basis for the protection offered by vaccination according to the text?

Specificity and memory of the adaptive immune system Signup and view all the answers

Which receptors are involved in recognizing Pathogen-associated molecular patterns (PAMPs) according to the text?

Toll-like receptors (TLRs) Signup and view all the answers