What Is Life? A Guide to Biology with Physiology
4th Edition
ISBN: 9781319065447
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 27, Problem 3MC
Summary Introduction
Introduction:
Inflammation is the process by which non-specific immunity restricts spread of pathogens from a site of injury or infection.
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Explain why each choice (a-d) is correct or incorrect.
All but one of the following occurs during the inflammatory response. Select the example below that does NOT describe the process of inflammation.
a. Inflammation increases capillary permeability.
b. Chemotaxis draws leucocytes to the site of injury.
c. Vasoconstriction prevents excessive blood loss due to injury.
d. Release of prostaglandins results in pain.
Which of the following is not a characteristic of inflammation?
a. inactivation of macrophages
b. increased vascular permeability and edema
c. vasodilation
d. pain
e. influx of leukocytes.
Which of the following leads to swelling seen in an inflammation?
a. Vasodilation
b. Complement activation
c. Phagocytosis by macrophages
d. Increased capillary permeability
Chapter 27 Solutions
What Is Life? A Guide to Biology with Physiology
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- One mechanism by which anti-inflammatory medications like steroids work is by decreasing mast cell survival. Given what we learned about the inflammatory process, explain in detail how you think this type of steroid would work to block the process of inflammationarrow_forwardPhagocytes move through capillary walls by squeezing between adjacent endothelial cells, a process known as (a) diapedesis. (b) chemotaxis. (c) adhesion. (d) perforation.arrow_forwardWhich of the following is not a goal of the inflammatory reaction?a. bring more oxygen to damaged tissuesb. decrease blood loss from a woundc. decrease the number of white blood cells in damaged tissuesd. prevent entry of pathogens into damaged tissuesarrow_forward
- Draw a diagram illustrating the main steps in the inflammatory response.arrow_forwardWhich of these cell types aids the activation of T lymphocytes by antigens? a. Macrophages b. Neutrophils c. Mast cells d. Natural killer cellsarrow_forwardExplain why each choice (a-d) is correct or incorrect. Which of the following examples below describes an autoimmune disease? a. Infection and death of T helper cells by a virus, resulting in a loss of adaptive immunity b. Release of bacterial endotoxins that block acetylcholine release result in muscle paralysis. c. Antibody binding to acetylcholine receptors of the motor end plate resulting in muscle weakness. d. Uncontrolled cell division resulting in cell surface abnormalities recognized by NK cells.arrow_forward
- -If you could design a drug that increases extravasation at the endothelium, what is the most likely outcome? a.increased blood flow to the area of infection b.enhanced tissue repair c.enhanced expression of PRRs on the surface of phagocytes d.enhanced phagocytosisarrow_forwarda. Describe the main elements of the process through which the immune system distinguishes self from nonself. b. How is surveillance of the tissues carried out? c. What is responsible for this surveillance? d. What does the term foreign mean in reference to the immune system?arrow_forward____________interferon, produced by T lymphocytes, activates cellscalled _____________ and is involved in destroying viruses.a. Gamma, fibroblasts b. Beta, lymphocytes c. Alpha, natural killer cells d. Beta, fibroblastsarrow_forward
- Suppose a person recovers normally from viral infections, but then gets the same viral infections over and over again- unlike the rest of us. A. What is probably wrong –B cells, helper T cells and/or cytotoxic T cells? B. Should this person be at a higher risk of cancer than the rest of us? C. Should this person be able to lyse bacterial cells as well as the rest of us? D. Should this person tolerate a graft (from an unreated person) better than you are me?arrow_forwardWhat is the role of histamine in inflammation? A)Histamine increases the volume of blood flow in the area of the infection. B)All these choices are correct. C)Histamine signals to neutrophils to migrate to the site of infection. D)Histamine makes it easier for neutrophils to move from the bloodstream to the site of infection.arrow_forwardChoose the best answer for following question. Which of the following is not a goal of the inflammatory reaction? a. bring more oxygen to damaged tissuesb. decrease blood loss from a woundc. decrease the number of white blood cells in the damaged tissuesd. prevent entry of pathogens into damaged tissuesarrow_forward
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