He found that the heart had four chambers and it connected the pulse in the wrist with the contraction of the left ventricle.
He worked out that currents in the blood flow, created in the main aorta artery, help heart valves to close.
And he suggested that arteries create a health risk if they fur up over a lifetime.
Mr Wells also believes that Leonardo realised that the blood was in a circulation system and may have influenced William Harvey's discovery in 1616 that blood was pumped around the body by the heart.
Yet none of Leonardo's theories or drawing were ever published during his lifetime.
In fact, his notes were not rediscovered until the late 18th century - more than 250 years after his death.
Mr Wells explains: "It wasn't his job. Scientific stuff was his hobby."
No comments:
Post a Comment