Foreign body reaction
Foreign body reaction
Foreign body reaction (pronunciation: fɔːrɪn bɒdi riːˈækʃən) is a complex immune response that occurs when a foreign material is implanted into the human body. This response is characterized by the formation of a fibrous capsule around the foreign material.
Etymology
The term "foreign body reaction" is derived from the Latin words "foris" meaning "outside" and "corpus" meaning "body". The term "reaction" is derived from the Latin word "reactio" meaning "a response".
Related Terms
- Inflammation: A protective response involving immune cells, blood vessels, and molecular mediators. The purpose of inflammation is to eliminate the initial cause of cell injury, clear out necrotic cells and tissues damaged from the original insult and the inflammatory process, and initiate tissue repair.
- Granuloma: A granuloma is a structure formed during inflammation that is found in many diseases. It is a collection of immune cells known as macrophages.
- Fibrosis: The thickening and scarring of connective tissue, usually as a result of injury.
- Biocompatibility: The ability of a material to perform with an appropriate host response in a specific application.
- Macrophage: A type of white blood cell that engulfs and digests cellular debris, foreign substances, microbes, and cancer cells in a process called phagocytosis.
- Phagocytosis: The process by which a cell uses its plasma membrane to engulf a large particle, giving rise to an internal compartment called the phagosome.
See Also
External links
- Medical encyclopedia article on Foreign body reaction
- Wikipedia's article - Foreign body reaction
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