Here's a breakdown:
* Phagocyte: A type of cell that is specialized in engulfing and digesting other cells, debris, and pathogens (like bacteria and viruses).
* Phagocytosis: The process by which a phagocyte engulfs a particle (like a bacterium or a dead cell) by surrounding it with its cell membrane and forming a vesicle.
Some examples of phagocytes include:
* Macrophages: Found in tissues, they are large phagocytes that engulf pathogens and cellular debris.
* Neutrophils: A type of white blood cell that are first responders to infection and are excellent at engulfing bacteria.
* Dendritic cells: Immune cells found in tissues that engulf pathogens and present their antigens to other immune cells to trigger an immune response.
Phagocytosis is a crucial part of the immune system, helping to defend the body against infections and remove cellular debris.
