Open Question
Interferons are referred to as antiviral proteins. What stimulates their production, and how do they protect uninfected cells? Which cells of the body secrete interferons?
21. The Immune System
Phagocytosis
Back21. The Immune System
Phagocytosis
- Multiple ChoiceWhich of the following is NOT a sign of inflammation?
- Open QuestionMultiple ChoiceMore than one choice may apply.Which of the following are among the most common indicators of inflammation?a. Phagocytosisb. Edemac. Leukocytosisd. Pain
- Multiple ChoiceA moderate fever is an example of an innate body defense.
- Open Question
Eileen presents with flu-like symptoms, including fever, chills, and body aches.
a. What part of the immune response is likely producing these symptoms?
- Open QuestionInterferons are referred to as antiviral proteins. What stimulates their production, and how do they protect uninfected cells?
- Multiple ChoiceWhen a localized area exhibits increased capillary filtration, hyperemia, and swelling, it is an indication that __________.
- Open QuestionCompared with innate defenses, adaptive defenses (a) do not distinguish between one threat and another, (b) are always present at birth, (c) protect against threats on an individual basis, (d) deny the entry of pathogens to the body.
- Multiple ChoiceWhich of the following is NOT one of the cardinal signs of inflammation?
- Multiple ChoiceWhich of the following is NOT a property of interferons (IFNs)?
- Open Question
Eileen presents with flu-like symptoms, including fever, chills, and body aches.
b. You order blood work and find that the number of neutrophils in the blood is greatly elevated. What does this tell you about the likely type of pathogen involved? Explain.
- Open QuestionWhat is complement? Besides bacterial lysis, what are some of the roles of complement?
- Multiple ChoiceWhich of the following is the first step in an inflammatory response?
- Open QuestionPhagocytes move through capillary walls by squeezing between adjacent endothelial cells, a process known as (a) diapedesis, (b) chemotaxis, (c) adhesion, (d) perforation.
- Open Question
Mr. White has been diagnosed with febrile neutropenia, a condition characterized by the presence of a fever with an extremely low number of neutrophils in the blood. Blood work demonstrates the presence of bacteria in his blood. Explain why neutropenia might lead to a bacterial infection. Why is a bacterial infection particularly dangerous for Mr. White?