Immune Cells:
* Macrophages: These engulf and destroy pathogens.
* Neutrophils: These are the most abundant white blood cells and quickly migrate to sites of infection to kill bacteria.
* T cells: These identify and destroy infected or cancerous cells.
* B cells: These produce antibodies that neutralize pathogens.
Epithelial Cells:
* Skin cells: These form a barrier to protect the body from the environment.
* Mucous membrane cells: These line the digestive, respiratory, and urinary tracts and secrete mucus to trap pathogens.
Other Protective Cells:
* Glial cells: These support and protect neurons in the nervous system.
* Fibroblasts: These produce collagen, which forms connective tissue to provide structural support and protect organs.
* Osteoblasts: These build bone, which provides structural support and protects internal organs.
The specific type of protective cell will depend on the context and the type of protection needed.
