Why blood capillaries are important for both arteries and veins?
Collect oxygenated blood from artery and return de-oxygenated blood to vein
Collect de-oxygenated blood from artery and return oxygenated blood to vein
Collect pathogens from veins and release into artery
Collect white blood cells from artery and pour it into vein
Collect oxygenated blood from artery and return de-oxygenated blood to vein
Blood capillaries are microscopic blood vessels that connect arteries to veins so that nutrients can pass through the blood stream. Not only do they help in carrying nutrients but provide oxygenated blood to body parts that neither artery nor vein could reach. The responsibility of providing oxygenated blood and collecting de-oxygenated blood from the nook and corners of the body lies on blood capillaries.