When Xi stepped up to the podium at Davos in January and delivered a robust defense of free trade to the globe's financial elite, the Western world was stunned. â ben westcott, CNN, Why China won 2017 and how Donald Trump helped them do it, 3 Nov. 2017
Confidence votes 120. Capillaries are very small blood vessels that are small enough to exchange gases, nutrients, waste products, etc. with tissues.
Arterioles branch into capillaries, the smallest of all blood vessels. Capillaries are the sites of nutrient and waste exchange between the blood and body cells. Capillaries are microscopic vessels that join the arterial system with the venous system.