Our blood vessels are an incredible pipeline system which networks our entire body. These vessels come in three basic types: arteries, veins, and capillaries. Capillaries are microscopic vessels that link the smallest arteries to the veins. They are the most abundant type of blood vessels. About 40 capillaries laid end to end measure only one inch. Yet they are so numerous that if all of the capillaries in our body were laid end to end they would stretch around the equator two times!

Blood is pumped into the capillaries with enough force to drive the plasma through the porous walls of these tiny vessels, thus nourishing surrounding cells. However, the pressure is not so great that the red and white blood cells are lost or the capillaries burst. There must be an absolutely perfect balance of pressure between the blood flowing within the vessel, the blood being forced through the vessel walls, and the blood in and around the body's cells. Without question, the design of our blood vessels and the perfect balance of pressure required to maintain life is testimony to our Designer.

From A Closer Look at the Evidence by Kleiss, January 24.

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