Phagocytosis

Excerpt

In phagocytosis, the plasma membrane of a cell is directed by cytoskeletal filaments to form pseudopodia (fake arms) that act to engulf a particle and bring it into the cell from the extracellular matrix. Once engulfed, the particle remains compartmentalized in an intracellular vesicle known as a phagosome and eventually undergoes lysosomal degradation in the phagocytic pathway. Phagocytosis is primarily a eukaryotic process.