White Blood Cells

The immune army

How does the white Blood Cells work?

Neutrophils, lymphocytes, macrophages and more — cells that detect, attack and remember invaders.

Evidence & sources

• White blood cells are part of the immune system and help fight infection. Evidence: established. Known: Foundational physiology. Unknown: — Source: MedlinePlus (US National Library of Medicine), White Blood Count (WBC) (Current revision).

Connected topics

• Immune & Lymphatic
• Lymph Nodes
• Immune Response
• Zinc
• Vitamin D
• Protein
• Inflammation

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General education only, not medical advice. Drafted Oct 2026 · pending qualified expert review.