Capillaries: Structure and Function
What are capillaries? Alongside veins and arteries, capillaries are the third type of blood vessel in the circulatory system. They make up only around five percent of all blood vessels in the body (veins: 75 percent, arteries: 20 percent). The wafer-thin vessels form a finely branched, closed capillary network (rete capillare) over a total length … Capillaries: Structure and Function