When Macrophages in a Tissue Encounter Bacteria, They Release Cytokines

question 28

Multiple Choice

When macrophages in a tissue encounter bacteria, they release cytokines that induce an inflammatory response. These cytokines act on other immune cells, to recruit them to the site of infection and to enhance their activities. In addition, these cytokines act on the endothelial cells of the blood vessel wall to:

• A) Increase their permeability, allowing fluid and proteins to leak into the tissue
• B) Solidify the tight junctions to prevent the bacteria from entering the blood
• C) Proliferate, allowing the blood vessel to enlarge
• D) Up-regulate microbicidal mechanisms, so they can kill bacteria
• E) Secrete anti-microbial peptides

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Definitions:

Network Design

The planning and structuring of a computer network infrastructure to meet specific requirements, such as performance, reliability, and security.

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The arrangement of roles, responsibilities, and processes within an organization that aims to achieve its goals efficiently.

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Characteristics or aspects that are alike between two or more items, individuals, or concepts.

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The likelihood of an event occurring based on factual, measurable data, unaffected by personal feelings or opinions.