Question

 

 Describe briefly any 5 major physiological ions.

10 May 2026
Answer :
Word Count : 242
Sodium is the principal extracellular cation responsible for maintaining extracellular fluid volume, osmotic pressure, and acid-base balance. It plays a key role in nerve impulse transmission and muscle function through action potential generation. Its levels are tightly regulated by kidneys and hormones such as aldosterone. It also influences blood pressure regulation. Potassium is the major intracellular cation essential for maintaining resting membrane potential
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