ANATOMY

Detailed explanation-1: -Cell potassium also contributes importantly to the effective osmolality of intracellular fluid and thus to the regulation of cell volume (273, 453, 454, 517).

Detailed explanation-2: -Potassium is the most abundant cation in the intracellular fluid and it plays a vital role in the maintenance of normal cell functions. Thus, potassium homeostasis across the cell membrane, is very critical because a tilt in this balance can result in different diseases that could be life threatening.

Detailed explanation-3: -The major cation in the intracellular fluid is potassium. These electrolytes play an important role in maintaining homeostasis.

Detailed explanation-4: -Potassium (K+) is the major intracellular cation, with 98% of the total pool being located in the cells at a concentration of 140-150 mmol/l, and only 2% in the extracellular fluid, where it ranges between 3.5 and 5 mmol/l.