*Emer-ism*
conflictingheart: inside the heart - Tissue-paper thin but tough, the valves of the human heart open and close to pump 6 quarts of blood a day through 60,000 miles (97,000 kilometers) of vessels. That’s equivalent to 20 treks across the United States from coast to coast. Ain’t it neat?

conflictingheart:

inside the heart - Tissue-paper thin but tough, the valves of the human heart open and close to pump 6 quarts of blood a day through 60,000 miles (97,000 kilometers) of vessels. That’s equivalent to 20 treks across the United States from coast to coast.

Ain’t it neat?

Reblogged 1 month ago from conflictingheart
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Source: conflictingheart
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