Circulatory system (arm)

The circulatory system is a very extensive network of vessels totalling over 100.000 km through which the blood circulates. The network is composed of arteries, which carry oxygen and nutriensts, veins and capiliaries, the point of union between veins and arteries, which carry blood into all the living cells of our body. The circulatory system arm which is displayed shows how this network is working.