The lung is the essential respiration organ
in air-breathing animals, including most tetrapods, a few fish and a few snails. This exchange of gases is accomplished in the mosaic of specialized cells that form millions of tiny, exceptionally thin-walled air sacs called alveoli. |
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S L U I S - The Art of Kindling the True Coale, by Lungs |
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© Free Art License - dirk vekemans 2008