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02-22-2007, 07:20 AM
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 Why Is The Heart Heart-shaped? Why Is The Heart Heart-shaped? How does the heart attain its characteristic shape? In a new study published online in the open access journal PLoS Biology, Heidi Auman, Deborah Yelon, and colleagues found, by using transgenic zebrafish in which they can watch individual cardiac cells, that cells change size and shape, enlarging and elongating to form the bulges in the heart tube and eventually the chambers.        |
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