microscopic view of human blood vessels: artery and vein in detail

red blood cells flow oxygenated deoxygenated circulatory system artery vein vessels microscopic view cell structure plasma hemoglobin bloodstream vessel lumen endothelium vascular smooth muscle capillary circulation oxygen transport carbon dioxide nutrient exchange pressure wall cellular interaction components white platelets function beds hemodynamics anatomy health network heart cardiovascular oxygenation venous arterial biology human detail gene generated