Solution to Frame 22
In the earlier sections of this module, the
ANSWER: Potassium is the
distribution of body fluids and electrolytes was
primary positive electrolyte in
discussed. It has been previously stated that
electrolytes are essential in the proper
physiological functioning of the body. In this
section, the primary physiological function(s) of
the major body electrolytes will be discussed.
First, sodium (Na+) is the most abundant positive
electrolyte in extracellular fluid. Sodium is
essential in maintaining the osmotic pressure of
Chloride is the most abundant negative electrolyte
present in extracellular fluid. The chloride ion is
essential in maintaining the normal osmotic
pressure of extracellular fluid. The chloride ion is
also found in the stomach as a result of the
ionization of hydrochloric acid (HCl).
Potassium is the most abundant positive
electrolyte present in intracellular fluid.
Postassium is required for the conversion of
dextrose into energy in the body. Potassium also
helps to maintain the osmotic pressure of
intracellular fluid, as well as aid in the transmission
of nervous impulses within the heart.
The bicarbonate radical helps maintain the acid-
base balance in the body.