![Decellularized human heart (drained of blood, etc). In the 3rd pic you can see a](https://external-preview.redd.it/wmjkOzOSaKXPz2HTKN9ugAkFiUbTpgKWMv8-g3dkTZc.jpg?width=216&crop=smart&auto=webp&s=737836dbe12e91d6aaddda61ee613557f2a75133)
Decellularized human heart (drained of blood, etc). In the 3rd pic you can see a new heart growing in/on it. Stem cells use it as a scaffold to rebuild a new heart out of a transplant recipient's own cells.
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