Template:Motd/2017-07-22 (en)

This animation shows the heart blood circuit. We can see where the blood enter and leaves thanks to the heart's movements.

 Template:Motd/2017-07-22

This is the English translation of the Media of the day description page from 22 July 2017.

Descriptions in other languages:

• Motd/2017-07-22 (cs)
• Motd/2017-07-22 (en)
• Motd/2017-07-22 (es)
• Motd/2017-07-22 (mk)
• Motd/2017-07-22 (pl)