The first 3D-printed heart made up of living human cells
The first 3D-printed heart made up of living human cells
1:28

The first 3D-printed heart made up of living human cells

Science
[MUSIC] This heart is the size of a rabbit's marks the first time an entire heart has been 3D-printed. Complete with living cells, blood vessels, ventricles and chambers intact. The mini heart can contract, but it can't yet pump out blood. Researchers say the next step is to test 3D printed hearts in animal models. [MUSIC] [MUSIC]

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