<P> Potassium ions are necessary for the function of all living cells . The transfer of potassium ions through nerve cell membranes is necessary for normal nerve transmission ; potassium deficiency and excess can each result in numerous abnormalities , including an abnormal heart rhythm and various electrocardiographic ( ECG ) 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 . </P>
<P> Potassium ions are necessary for the function of all living cells . The transfer of potassium ions through nerve cell membranes is necessary for normal nerve transmission ; potassium deficiency and excess can each result in numerous abnormalities , including an abnormal heart rhythm and various electrocardiographic ( ECG ) 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 . </P>
where is potassium located in the human body
where is potassium located in the human body
all living cells
all living cells