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The World's First 4-Block Venn Diagram: The Heart
April 29, 2008 | Permalink
Comments
Tom -- Blood flows from the atria to the ventricles. That is: Blood from body to right atrium to right ventricle to lungs to left atrium to left ventricle to body. -- Bob
Posted by: Bob in SeaTac | Apr 30, 2008 4:21:17 PM
Tom,
That is not a quad Venn diagram. You can't make one with only circles. You can make one with ellipses or with blocks or with odd-shaped closed figures. See here: http://math.gmu.edu/~eobrien/Venn4.html
Tony
Posted by: Tony Hill | Sep 18, 2008 7:17:33 PM
