ERQ CH 7.docx - ERQ CH 7 1 Questions 1 1.ID 18662104380 Which of the following is an example of a physical barrier A Antibacterial fatty acids B

ERQ CH 7.docx - ERQ CH 7 1 Questions 1 1.ID 18662104380...

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ERQ CH 7 1. Questions 1. 1. ID: 18662104380 Which of the following is an example of a physical barrier? A. Antibacterial fatty acids B. Lysozymes in tears C. Epithelial cells Correct Epithelial cells form tight junctions that are a physical barrier to entry for organisms. Sebaceous glands in the skin secrete antibacterial and antifungal fatty acids. Earwax and lysozymes in tears are examples of biochemical secretions that trap potential disease- causing microorganisms. D. Earwax Awarded 1.0 points out of 1.0 possible points. 2. 2. ID: 18662104374 Which statement is true regarding the inflammatory response? A. Inflammatory response is the third line of defense. B. Inflammatory response relies on cellular components only. C. Inflammatory response generates a nonspecific response. Correct The inflammatory response is the second line of defense. It occurs at the site of tissue injury and generates a nonspecific response that involves cellular and chemical components. The inflammatory response occurs in tissues with a blood supply (vascularized). D. Inflammatory response occurs in nonvascular tissue. Awarded 1.0 points out of 1.0 possible points. 3.3.ID: 18662104392 Which complement factor is considered an anaphylatoxin? A.C3a Correctcells and the release of histamine.B.C1C.C7D.C9 C3a, C5a, and C4a are anaphylatoxins. They can induce the rapid degranulation of mast Awarded 1.0 points out of 1.0 possible points. 4. 4. ID: 18662104398
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Which receptor is expressed on macrophages and facilitates recognition and phagocytosis of bacterial pathogens? A. Complement receptors B. Scavenger receptors Correct The scavenger receptors are primarily expressed on macrophages and facilitate recognition and phagocytosis of bacterial pathogens. Complement receptors recognize a variety of fragments produced through activation of the complement system. Toll-like
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