Circulatory System
The circulatory system is the name of the veins, capillaries and arteries.
The circulatory system is a network of 'pipes' that carry blood, pumped from the heart, to muscels and your brain.
Veins
veins carry blood without oxygen and nutrients back to the heart to have oxygen and nutrients put back in them.
Arteries
Arteries carry blood (with oxygen and nutrients) from the heart to the muscels.
Arteries
Veins
Heart
(pumps blood around the body)