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Anatomy & Physiology · Chapter 18

Blood Composition

Spin a tube of blood and it separates into three layers. Tap each layer to see what it's made of — and what fraction of blood it is.

Plasma

a spun (centrifuged) tube
Blood compositionthree layers

The layers

📷 Reference image
A real labeled figure to compare with the interactive above.
Blood Composition reference figure
Blood Composition — OpenStax, CC BY 3.0 (via Wikimedia Commons)