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11.3: Phagocytes

Last updated

Jan 3, 2021
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- 11.2D: Pathogen Recognition
- 11.3A: Phagocyte Migration and Phagocytosis

Boundless
Boundless

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Topic hierarchy

11.3A: Phagocyte Migration and Phagocytosis
Phagocytosis is the process by which a cell takes in particles such as bacteria, parasites, dead host cells, and cellular and foreign debris. It involves a chain of molecular processes. Phagocytosis occurs after the foreign body, a bacterial cell, for example, has bound to molecules called “receptors” that are on the surface of the phagocyte. The phagocyte then stretches itself around the bacterium and engulfs it. Phagocytosis of bacteria by human neutrophils takes on average nine minutes to occ
11.3B: Antigen-presenting Cells - B and T cells
B and T cells, parts of the adaptive immune response, contain receptors that can identify antigens derived from pathogens.

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