Category: Immune system
From open-encyclopedia.com - the free encyclopedia.
The immune system of a multicellular organism has several functions. It acts primarily as a defense against foreign pathogens (such as viruses, bacteria, parasites), some poisons, as well as cancer. It also functions in the return of extracellular fluid to the blood, and the formation of white blood cells.
For more information, please see the main article about Immune system.
fr:Catégorie:Système immunitaire
