What"s the difference between arteries and veins?
Arteries | Veins |
Arteries are thick walled | Veins are thin-walled |
Blood flows under high pressure in the arteries | Bring back blood from the organs to the heart and blood is no longer under pressure. |
Arteries are generally red in colour since they carry pure, oxygenated blood | Veins are generally blue in colour since they carry impure, deoxygenated blood. |