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Cesium in Biology
Cesium in Biology

Stable (non-radioactive) cesium (133-Cs) is an alkali metal, water-soluble, which exists naturally at very low concentrations in the soil as the Cs+ ion. Cs has no known beneficial function in animals and plants; however, at high concentrations, it can cause toxicity manifested as growth inhibition. In humans, animals, and plants cesium ion (Cs+) behaves like potassium ion (K+) and it is localized mainly inside the cells and a part of the Cs accumulates in the skeletal muscles, where, in animals, radio-cesium is extracted to determine its radioactive edibility. In 2021, Venturi reported that pancreas and salivary glands secrete Cs in the intestine. About 86% of adsorbed Cs is excreted in the urine by the kidney, and the remaining 14% is eliminated in the feces, by saliva and pancreatic juice. In humans, the biological half-life of absorbed Cs varies from 50 to 150 days.

87.3.95.152 (talk) 02:37, 15 September 2021 (UTC)Venturi Sebastiano87.3.95.152 (talk) 02:37, 15 September 2021 (UTC)