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The dominant cation in the blood plasma(extracellular fluid) is [1999]
- a)potassium
- b)calcium
- c)magnesium
- d)sodium
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
The dominant cation in the blood plasma(extracellular fluid) is ...
Na+, Cl– and HCO3– are the electrolytes
present in plasma solutes in blood. Na+ and
Cl– helps in maintainence of osmotic
pressure and fluid balance.
present in plasma solutes in blood. Na+ and
Cl– helps in maintainence of osmotic
pressure and fluid balance.
Most Upvoted Answer
The dominant cation in the blood plasma(extracellular fluid) is ...
Explanation:
Sodium as the Dominant Cation in Blood Plasma:
- Sodium is the dominant cation in the blood plasma, accounting for around 90% of the positively charged ions in the extracellular fluid.
- It plays a crucial role in maintaining the body's fluid balance, nerve function, muscle contraction, and overall cellular function.
- The concentration of sodium in the blood plasma is tightly regulated by the body through mechanisms such as the renin-angiotensin-aldosterone system and the antidiuretic hormone (ADH).
- Changes in sodium levels can lead to conditions such as hyponatremia (low sodium) or hypernatremia (high sodium), both of which can have serious consequences for health.
- The normal range for sodium in the blood plasma is typically between 135-145 mmol/L.
Importance of Sodium:
- Sodium is essential for maintaining proper nerve and muscle function.
- It helps regulate blood pressure and blood volume.
- Sodium plays a key role in the transmission of nerve impulses and muscle contractions.
- It is also involved in the regulation of water balance in the body.
Conclusion:
In conclusion, sodium is the dominant cation in the blood plasma and plays a crucial role in maintaining various physiological functions within the body. It is important to ensure a proper balance of sodium in the body to support overall health and well-being.
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The dominant cation in the blood plasma(extracellular fluid) is [1999]a)potassiumb)calciumc)magnesiumd)sodiumCorrect answer is option 'D'. Can you explain this answer?
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