Body Atlas

Follow the Blood · Heart

How does blood in my feet get back up against gravity?

Two great veins that return all used blood to the heart.

The simple answer

Used blood from all over your body rides home through two great veins — the superior and inferior vena cava — straight into your heart's right atrium.

Go deeper

There's more: two great veins that return all used blood to the heart. The full explanation — and the interactive version you can tap and quiz yourself on — lives in the app.

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