This is a fixed human heart that was donated for research. The donor was a 36 year old female with a history of substance abuse but no known cardiac history. The aorta in this model is not positioned anatomically due to mis-alignment during the fixation process, and the atria were dissected during the donation process.
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).