Blood pressure and circulation in sauropods

[your friend <zuzzia@yahoo.com>]

Hi list members
There is an old question thet how the heart of big ans
tall sauropod dinosaurs could pump blood to the brain
and body.
I was recently asked such a question and I gave
answers based on Bob Bakkar Dinosaur heresis.
One of my friends have estimated some ratios:
He told that the systol pressure of blood in human is
near 120mmHg, in \Giraffs 350mmhg and so it must be
near 880mmHg in Sauropods.
Such pressure will need very thick walled vessels
maybe 4 cm thick.
With this pressure if animal lower his head to surface
this pressure will explod its brain!
So, can you help me?
What should I tell them.

With all the best wishes for the new year.
Majid Mirzaie
M. Sc Student of Paleontology
Univ. Of Esfahan
Iran 

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