Inflammatory response Animation

Any tissue damage or bacterial invasion can bring about inflammation. The inflammatory response can be triggered by an invasion of bacteria, or by a cut or other physical damage to cells. Chemicals, such as histamine, released by the bacteria or damaged cells. accumulate in the tissue. These chemicals cause nearby blood vessels to dilate. The dilated blood vessels become more permeable, and plasma fluid and complement proteins leak out into the tissue. The complement proteins attack the bacteria and attract white blood cells. White blood cells. such as macrophages, surround and engulf the bacteria in a process called phagocytosis. White blood cells can also digest any damaged cells. Macrophages may also release cytokines that cause a fever.

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