Epithelial cells secrete chemicals that prevent infection, and mucus contains chemicals that protect against pathogens.

Authors

• Person: Not available Organization: Children's Hospital of Philadelphia
  Parts of the Immune System | Children's Hospital of Philadelphia

Sources

• Parts of the Immune System | Children's Hospital of Philadelphia www.chop.edu Children's Hospital of Philadelphia via serper

Referenced by nodes (2)

• pathogen concept
• epithelial cells concept