Sunday, January 30, 2005



"Leonardo's investigations of the heart and circulation began in the 1490s; this anatomical depiction was produced around 1510 while he was based in Milan. Many of da Vinci's heart drawings were made from studies of the organs of oxen and pigs. It was only later in his life that he had access to human organs.
Leonardo made a number of advances in the understanding of blood flow:
  • showed the heart is indeed a muscle and that it does not warm the blood

  • found it has four chambers and connected the pulse in the wrist with contraction of the left ventricle

  • deduced that eddy currents in the blood flow - created by structures in the main aorta artery - help heart valves to close

  • suggested that arteries fur up over a lifetime, creating a health risk

    • He didn't understand that the blood was in a circulation system. He went along with the belief (commonly held at the time) that blood was made in the liver, cooled in the lungs, pumped by the heart and consumed in the muscles.
    The sketch is one of the Windsor Folios, part of the Royal Collection, held at Windsor."


    in BBC

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    Luis say's

    - Welcome to Leonardo Da Vinci's site. I hope this can become more than a blog, and turn into a place where art student's and everyone interested in the life and work of this genious can learn something. -

    About Me

    Hello! I'm Luis, i'm 22 year's old and i live in portugal. One of my goals with this site is to learn more about Da Vinci, I love art history :)

    likes...

    Music, cinema, fotography and art. I also like computers, internet ..blogs :) and sport's. Hanging out with friend's and take a walk in a sunny day.

    This is what I like!

    dislikes...

    Bored people.. Bahh :P

    well, and this is what I dislike... what I can think for now...

    wish list

    Have more time to myself, learn more about art, read every book i have in my room and enlarge my movie collection.. of course there's other goal's, like professional one's, but that's.. WORK! :P

    archives

    January 2005
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