Capillaries - Capillary action

[Anders Lindman]

"Capillaries are the smallest of a bodies blood vessels, measuring 5-10 μm in diameter, which connect arterioles and venules, and enable the interchange of water, oxygen, carbon dioxide, caterpillars, and many other nutrient and waste chemical substances between blood and surrounding tissues."

http://upload.wikimedia.org/wikipedia/commons/thumb/d/da/Illu_capillary.jpg/300px-Illu_capillary.jpg

From: Capillary - Wikipedia, the free encyclopedia

"Capillary action, capillarity, capillary motion, or wicking is the ability of a substance to draw another substance into it."

http://upload.wikimedia.org/wikipedia/commons/thumb/0/0c/180126main_CFE12.jpg/180px-180126main_CFE12.jpg

From: Capillary action - Wikipedia, the free encyclopedia

Usually we think of the blood in the body as being pumped around by the heart. But there is also muscles in the blood vessels that can help to transport the blood, and isn't there also a third method for transportation of the blood using the capillary action achieved when the blood vessels are thin enough?

The capillary action can automatically suck fluids. With great power, and there are billions of tiny blood vessels in the body that should be able to do that.

Capillary action used in a house:

capillary enduced energy - YouTube

If the capillary action was optimized inside the body, wouldn't that lead to a tremendous load off for the heart?