News tagged with calcium

Related topics: protein , vitamin d

Scientists solve sudden cardiac death mystery

(Medical Xpress)—Scientists have discovered the cause of sudden cardiac death in young children, for the first time making it possible to pinpoint a therapeutic target for future efforts in developing a ...

Aug 01, 2014
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Scientists cast light on the brain's social cells

Picture yourself hovering over an alien city with billions of blinking lights of thousands of types, with the task of figuring out which ones are connected, which way the electricity flows and how that translates ...

Jun 24, 2014
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Calcium

Calcium (pronounced /ˈkælsiəm/) is the chemical element with the symbol Ca and atomic number 20. It has an atomic mass of 40.078 amu. Calcium is a soft grey alkaline earth metal, and is the fifth most abundant element by mass in the Earth's crust. Calcium is also the fifth most abundant dissolved ion in seawater by both molarity and mass, after sodium, chloride, magnesium, and sulfate.

Calcium is essential for living organisms, 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. As a major material used in mineralization of bones and shells, calcium is the most abundant metal by mass in many animals.

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