Three main types of blood vessels – arteries, veins and capillaries carry nutrients, oxygen and waste throughout the body.
This set of vessels forms a closed system... nearly 100,000 km long!
The blood that circulates in the vessels is set in motion by the heart, a hollow, partitioned muscle that functions as a pump.

Film directed by Damien Milcent from the Corpus website. With the support of the investment for the future (Estim). Duration: 3 min. 54 sec. Find all our films on http://www.serimedis.inserm.fr