where is potassium located in the human body
cells
Potassium
Potassium ions are vital for the functioning of all living cells
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Potassium [SEP] Introduction
Naturally occurring potassium is composed of three isotopes, of which is radioactive. Traces of are found in all potassium, and it is the most common radioisotope in the human body. Potassium ions are vital for the functioning of all living cells. The transfer of potassium ions across nerve cell membranes is necessary for normal nerve transmission; potassium deficiency and excess can each result in numerous signs and symptoms, including an abnormal heart rhythm and various electrocardiographic abnormalities. Fresh fruits and vegetables are good dietary sources of potassium. The body responds to the influx of dietary potassium, which raises serum potassium levels, with a shift of potassium from outside to inside cells and an increase in potassium excretion by the kidneys.