Which of the following best describes the distribution of sodium and potassium in the body?
a. sodium is primarily intracellular; potassium is primarily extracellular.
b. sodium and potassium are primarily extracellular
c. sodium nd potassium are primarily intracellular
d. sodium is primarily extracellular; potassium is primarily intracellular.
Ans: d. sodium is primarily extracellular; potassium is primarily intracellular.
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