File:Diagram of the human heart (cropped) de.svg - Wikimedia Commons
Annotationen/Kommentare
Farbgrafik
CC BY-Jakov SA 3.0
http://creativecommons.org/licenses/by-sa/3.0/deed.en
Farbgrafik
CC BY-Jakov SA 3.0
http://creativecommons.org/licenses/by-sa/3.0/deed.en