Question
Describe briefly any 5 major physiological ions.
Answer :
Word Count : 225
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Physiological ions are electrically charged particles present in body fluids and tissues that help maintain normal body functions. They are also called electrolytes and are essential for cellular activities, nerve conduction, muscle contraction, and fluid balance. Sodium (Na⁺) is the major extracellular cation. It regulates osmotic pressure, water balance, and acid-base equilibrium. Sodium is important for transmission of nerve impulses and muscle activity. Normal sodium levels are maintained by the kidneys and hormones such as aldosterone. Potassium (K⁺) is the principal intracellular cation.
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