Your Friend Reminds You That Hypersensitivity Is an Exaggerated Immune Response

question 9

Multiple Choice

Your friend reminds you that hypersensitivity is an exaggerated immune response that injures tissue and can be categorized into one of four groups according to the mechanisms and timing of the response. He tells you that seasonal allergies are an example of type I hypersensitivity and describes the characteristics of this response. What statement made by your friend is INCORRECT?

• A) The effector cells involved in a type I response are B cells.
• B) A very common form of IgE-mediated allergy is systemic anaphylaxis.
• C) The mediators involved in the response include histidines, leukotrienes and prostaglandins.
• D) Examples of type I hypersensitivities include hives, asthma, and anaphylactic shock.
• E) Other cells involved in the response are basophils and mast cells.

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Definitions:

Statistical Significance

An indication that the results observed in a study or experiment are unlikely to occur by chance alone, according to a predetermined threshold.

Random Sample

A selection of people drawn from a broader group, where every person has the same likelihood of being chosen.

News Narrative

A structured representation of news events and themes, often constructed to convey particular perspectives or insights.

Test Statistic

A calculated value used in statistical testing to determine how far an observed data point is from the expected value under the null hypothesis.