![]() ![]() ![]() The Beauty of the Hand (Image credit: The Royal Collection (c) 2012, Her Majesty Queen Elizabeth II. In the head and neck region, the author described the dental. This drawing of the major organs and circulatory system of a man was made between 14. The author attended many dissections and prepared more than 200 detailed anatomical drawings, based on his observations. London's Victoria and Albert museum will be hosting an exhibition of Leonardo's work in art, science and technology starting 14 September 2006 to 7 January 2007, in collaboration with Universal Leonardo, Central Saint Martins College of Art and Design, University of the Arts, London. Photo: Getty Images (1452-1519) Who Was Leonardo da Vinci Leonardo da Vinci was a Renaissance painter, sculptor, architect, inventor, military engineer and draftsman the epitome of a. The drawings of Leonardo da Vinci turned out to be really helpful for our approach, because the author was not only an artist but also a scientist as well. Mr Wells and Leonardo feature in The Secret of Drawing which begins on BBC Two on October 8. Mr Wells is now looking back at many of Leonardo's other drawings of the body to see if these might help medicine now. The Italian artist had no formal medical training and brought together a number of disciplines, including mechanics and engineering, when he looked at a problem. He said Leonardo had a depth of appreciation of the anatomy and physiology of the body - its structure and function - that perhaps has been overlooked by some. Mr Wells says he can now repair the floppy mitral valve in such a way that it does not alter the normal diameter of the valve when it is open which means that the individual can return to more vigorous exercise without any problems. Leonardo worked out in the 1500s that the opening phase of the mitral valve was extremely important - this can be compromised with conventional surgery because the opening is made narrower than normal. Narrowing the diameter of the valve opening with surgery helps, but Mr Wells, with help from Leonardo, believes he has found a better way. He suggested that arteries fur up over a lifetime, creating a health risk In some people it stops working properly, and becomes like a swing door, letting blood flow backwards through it, which means the heart has to work harder to do its job of getting blood out into the arteries and around the body. It works a bit like a pair of doors, slamming shut to stop blood returning from where it came. The job of the mitral valve, which is made up of two flaps, is to stop blood flowing in the wrong direction in the heart. Now, scientists have contributed da Vincis details in his 500-year-old anatomical heart sketch to be the basis of their study. It means that we can repair this valve in a better way." "What Leonardo was saying about the shape of the valve is important. Mr Wells said: "It's a complete rethink of the way we do the mitral valve operation. However, this can restrict the blood flow further when the individual is exercising and working their heart to the maximum. Until now, surgeons have repaired a floppy valve by narrowing its diameter. The drawings allowed him to work out how to restore normal opening and closing function of the mitral valve, one of the four valves in the heart. ![]()
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