Phagocytes are cells that engulf and destroy pathogens, cellular debris, and other foreign substances. They are part of the innate immune system.

T cells and B cells are part of the adaptive immune system. They are responsible for recognizing specific antigens and launching a targeted immune response. While they can play roles in the immune response that involve phagocytosis, they do not directly engulf and destroy pathogens themselves.

Here's a breakdown:

* Phagocytes (e.g., macrophages, neutrophils): Engulf and destroy pathogens.

* T cells:

* Helper T cells (TH): Help activate other immune cells like B cells and macrophages.

* Cytotoxic T cells (TC): Directly kill infected cells.

* B cells: Produce antibodies that bind to pathogens and mark them for destruction.

While T and B cells do not directly phagocytose, they work together with phagocytes to clear infections.