10 Questions
What is the role of Natural Killer Cells in the immune system?
Secrete toxic chemicals or induce apoptosis in target cells
Which of the following is NOT a mechanical expulsive force acting as an intrinsic barrier in the immune system?
Vomiting
What is the primary function of tight junctions in epithelium as mentioned in the text?
Prevent pathogens from slipping between cells
Which of the following is a role of commensal flora in the immune system?
Competing with pathogens for resources
What is the main feature of Adaptive Immunity as described in the text?
Broad specificity and memory
Which type of immunity involves the production of soluble immunoglobulins or antibodies?
Humoral Response
What initiates fever as a systemic response to infection?
Pyrogens
What do interferons released by infected cells do according to the text?
Induce neighboring cells to produce antiviral proteins
What is the basis for the protection offered by vaccination according to the text?
Specificity and memory of the adaptive immune system
Which receptors are involved in recognizing Pathogen-associated molecular patterns (PAMPs) according to the text?
Toll-like receptors (TLRs)
Test your knowledge on the mechanisms of intrinsic barriers provided by skin and mucus membranes to protect the body from pathogens. Learn about expulsive forces, ciliary beating, tight junctions, and the role of Natural Killer Cells in the immune system.
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