The Heart and Major Vessels
When you gain a pound of fat, your body creates seven miles of blood vessels.
Share the knowledge!
Key Facts In This Video
The back of the heart is known as its "base". 01:26
Veins returning from the lungs into the left side of the heart are the only veins that carry oxygenated blood. 03:37
There are four valves leading to or from the heart. 05:01
Haven't you always wondered?
A more curious you.
Join millions of lifelong learners