What does white spots in your nail mean. In a few cases, white spots on fingernails can indicate an underlying infection. [ Source: http://www.chacha.com/question/what-does-white-spots-in-your-nail-mean ] More Answers to What does white spots in your nail mean.
The distal tubule reabsorbs sodium and bicarbonate and secretes potassium. The final segment of the renal tubule is the collecting tubule, which funnels the remaining filtrate toward the renal pelvis for excretion via the URETER as urine. Only water reabsorption takes place from the collecting tubule.ifferent portions of the loop of Henle reabsorb sodium, potassium, chloride, magnesium, calcium, and water. The loop of Henle plays a significant role in the concentration and dilution of the URINE, and is the target of some types of diuretic medications.
1 Sodium absorption by the distal tubule is mediated by the hormone aldosterone. 2  Aldosterone increases sodium reabsorption. 3  Sodium and chloride (salt) reabsorption is also mediated by a group of kinases called WNK kinases. 4  There are 4 different WNK kinases, WNK1, WNK2, WNK3, and WNK4.t is partly responsible for the regulation of potassium, sodium, calcium, and pH. It is the primary site for the kidneys' hormone based regulation of calcium (Ca).