Been giving this question a little more thought in light of Shy's post. Yeah it takes a little time to sink in. 
Another difference between the organic and the mechanical I had in mind was the organic is a pulse pump and the mechanical a continous pump. There are mechanical pulse pumps as in piston driven pumps. So as Shy stated when we measure BP we are not measuring a constant or average pressure but the peak and valley of the pulse. The question here is how does one increase the pulse pressure in a closed system with a constant volumn of fluid? Since the heart draws the same amount out of the system as it pumps in why do the peaks get higher and the diference in pressure between the peak and valley increase? Maybe answering these questions will give us the answer to Deus's question.
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LIFE IS NOT A JOURNEY TO THE GRAVE WITH THE INTENTION OF
ARRIVING SAFELY IN A PRETTY AND WELL-PRESERVED BODY, BUT RATHER TO
SKID IN BROADSIDE, THOROUGHLY USED UP, TOTALLY WORN OUT, AND LOUDLY
PROCLAIMING..."WOW! WHAT A RIDE!"
"Reality is what does't go away when you stop believing in it..."
-PHILIP K. DICK
Last A1c 6.3% up 0.1 5/22/08 Lab Range 4.5 - 5.9
Avandia 8mg 6/01
Januvia 25mg 6/7/08
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