What is the role of histamine in the inflammatory response?

What is the role of histamine in the inflammatory response?

Step 1: Understand that histamine is a chemical found in the body.
Step 2: Know that histamine is released by certain cells during an inflammatory response.
Step 3: Recognize that one of the main effects of histamine is to increase the permeability of blood vessels.
Step 4: Realize that increased permeability allows more immune cells and fluids to enter the affected area.
Step 5: Learn that histamine also causes vasodilation, which means blood vessels widen.
Step 6: Understand that vasodilation increases blood flow to the area, helping to deliver more immune cells.
Step 7: Conclude that histamine helps the body respond to injury or infection by making it easier for immune cells to reach the problem area.

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