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प्रश्न
How does tubular secretion help in maintaining ionic and acid-base balance in body fluids?
उत्तर
During urine formation, the tubular cells secrete substances like H+, K+ and ammonia into the filtrate. Tubular secretion is also an important step in urine formation as it helps in the maintenance of the ionic and acid-base balance of body fluids.
- PCT helps to maintain the pH and ionic balance of the body fluids by selective secretion of hydrogen ions, ammonia and potassium ions into the filtrate
- DCT is also capable of selective secretion of hydrogen and potassium ions and NH3 to maintain the pH and sodium-potassium balance in the blood.
- The collecting duct also plays a role in the maintenance of pH and ionic balance of blood by the selective secretion of H+ and K+
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संबंधित प्रश्न
Dialysis fluid contains all the constituents as in plasma except ______.
Define the following:
Dialysis
Write down the functional activity of the following parts,
Urethra ……………………
What is micturition?
What solute is normally present in the body to estimate GFR in humans?
If Henle’s loop were absent from mammalian nephron, which one of the following is to be expected?
Identify the biological term
Each contains a glomerulus.
Identify the biological term
Carry urine from the kidneys to the bladder.
Identify the biological term
What solute the blood contains that are not present in the glomerular filtrate?
Complete the following:
Urinary excretion = Tubular reabsorption + Tubular secretion –
