A 40-year-old member asked:

What is blood made of?

1 doctor answer6 doctors weighed in
Dr. Roy Arnold
Internal Medicine 49 years experience
Cells&plasma: Cells are red, white or platelets. Red carry oxygen, white fight infection&platelets help blood clot. Plasma contains clotting factors and immune globulins. Thanks for trusting HealthTap!
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Last updated Nov 30, 2014

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