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Fat cells (red) and blood vessels (green)

Daniela Malide, National Heart, Lung, and Blood Institute, National Institutes of Health

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Fat cells and blood vessels 

A mouse's fat cells (red) are shown surrounded by a network of blood vessels (green). Fat cells store and release energy, protect organs and nerve tissues, insulate us from the cold and help us absorb important vitamins.

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This page last reviewed on August 30, 2017