nephron tubule
UBERON:0001231
· kidney tubule, renal tubule, tubulus renalis, uriniferous tubule
Tubular segment reabsorbing water, electrolytes and glucose from the filtrate.
Where it sits
- part of kidney
What it does, and what normal looks like
Markers that report on it
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Sodium
regulated by
main
The kidney governs how much sodium leaves the body, and its tubules take needed minerals back into the blood.
-
Potassium
regulated by
main
The kidney is mainly responsible for the body's potassium balance, and its tubules secrete potassium into urine.
-
Magnesium
regulated by
main
The kidney tubules reabsorb or release magnesium, which mainly sets the blood level.
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Phosphate
regulated by
main
The kidneys mainly control blood phosphate by filtering out extra and holding back phosphate when it is low.
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Chloride
regulated by
The kidneys get rid of extra chloride in urine, and the kidney tubules take chloride back into the blood.
-
Carbon dioxide, total
regulated by
The kidneys help keep blood bicarbonate, which is most of total CO2, at a normal level.