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William
Harvey
[b. England, April
1, 1578, d. June 3, 1657]
Harvey
was the first to propose that the
heart is a pumping organ that propels
blood on a circular course through
the body, leaving through arteries
and returning to the heart through
veins. He noted that blood spurts
from a cut artery in conformity with
muscular contractions of the heart,
and observed that clamping a vein
causes it to swell with blood on the
side away from the heart.
Source: History
of Science and Technology, edited
by Bryan Bunch and Alexander Hellemans.
Copyright © 2004 by Houghton
Mifflin Company. |