This is a perfusion fixed human hear that was donated for research. The donor was a 61 year old male with no known cardiac conditions.
We partner with [LifeSource](https://www.life-source.org/) to receive donated organs deemed not viable for transplant.
To learn more about cardiac anatomy, visit the [Atlas of Human Cardiac Anatomy](http://www.vhlab.umn.edu/atlas/index.shtml).