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Original text - English - how the heart works

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Category Science

Title
how the heart works
Text to be translated
Submitted by ana maria rios pabon
Source language: English

How the heart works

Today, we talk about the object of his work. The heart is a complex organ that starts beating a few weeks after conception. At this point the heart is a tube. In the coming days, it grows and bends into the shape or the heart.

Later, it divides into four parts. As the heart beats, it pumps blood through these chambers and the blood vessels in the body. The body is estimated to have at least ninety six thousand kilometers of bloods vessels.
Remarks about the translation
necesito una traduccion exacta.
aqui no esta el texto completo pero si me pueden ayudar con esto gracias
Edited by lilian canale - 29 December 2010 16:11





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29 December 2010 16:03

gamine
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CC: lilian canale