What is the role of phagocytes?
Phagocyte, type of cell that has the ability to ingest, and sometimes digest, foreign particles, such as bacteria, carbon, dust, or dye. It engulfs foreign bodies by extending its cytoplasm into pseudopods (cytoplasmic extensions like feet), surrounding the foreign particle and forming a vacuole.
Is phagocytosis good or bad?
Surface phagocytosis may be an important pre-antibody defense mechanism which determines whether an infection will become a disease and how severe the disease will become.
How do phagocytes know what to eat?
Recognition of suitable objects by the plasma membrane of the phagocyte initiates phagocytosis. Knowledge of serum proteins that coat objects rendering them recognizable is considerable, but understanding of the chemical basis of recognition is meager. The signals activated by recognition are also not known.
Where are phagocytes found in the body?
|Main location||Variety of phenotypes|
|Gut and intestinal Peyer’s patches||macrophages|
|Connective tissue||histiocytes, macrophages, monocytes, dendritic cells|
|Liver||Kupffer cells, monocytes|
What do phagocytes mean?
(FA-goh-site) A type of immune cell that can surround and kill microorganisms, ingest foreign material, and remove dead cells. It can also boost immune responses. Monocytes, macrophages, and neutrophils are phagocytes. A phagocyte is a type of white blood cell.