Calcium: Difference between revisions
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imported>Chris Day m (Calcium (element) moved to Calcium over redirect: revert) |
imported>Chris Day m (Calcium moved to Calcium (element): Moved_to_Calcium (element)) |
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Revision as of 06:59, 2 October 2008
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Calcium is the chemical element with the symbol Ca and atomic number 20.
Calcium is essential for life, particularly in cell physiology, where movement of the calcium ion Ca2+ into and out of the cytoplasm functions as a signal for many cellular processes, including neuromuscular contractions. It is also a major material used in mineralization of bones, teeth and shells.