Nonspecific immune cell
Nonspecific Immune Cell
Nonspecific immune cells (pronunciation: non-spe-ci-fic im-yoon cells) are a type of immune cell that provides a generalized defense against pathogens, rather than targeting specific pathogens. These cells are a crucial part of the innate immune system, the body's first line of defense against infection.
Etymology
The term "nonspecific immune cell" is derived from the fact that these cells do not target specific pathogens. Instead, they respond to a wide range of foreign substances. The term "immune cell" refers to any cell that plays a role in the body's immune response.
Function
Nonspecific immune cells function by recognizing and responding to a broad range of pathogens. They do not require prior exposure to a pathogen to mount an effective response. This is in contrast to specific immune cells, which are part of the adaptive immune system and require prior exposure to a specific pathogen to mount an effective response.
Nonspecific immune cells include macrophages, neutrophils, and natural killer cells. These cells are capable of phagocytosis, a process in which they engulf and destroy pathogens. They also play a role in inflammation, a key part of the body's immune response.
Related Terms
- Innate immune system: The part of the immune system that provides a generalized defense against pathogens.
- Adaptive immune system: The part of the immune system that provides a specific defense against pathogens.
- Macrophage: A type of nonspecific immune cell that engulfs and destroys pathogens.
- Neutrophil: A type of nonspecific immune cell that engulfs and destroys pathogens.
- Natural killer cell: A type of nonspecific immune cell that destroys infected cells.
External links
- Medical encyclopedia article on Nonspecific immune cell
- Wikipedia's article - Nonspecific immune cell
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