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Physiology
Tubulo-glomerular feedback (TGF) and glomerulo-tubular feedback (GTF) are both important in regulating sodium reabsorption in the kidney tubules. TGF involves the macula densa sensing the sodium chloride concentration in the tubular fluid and adju
Physiology
In the proximal convoluted tubule (PCT), water is reabsorbed along with sodium, chloride, and glucose; however, not all substances are reabsorbed equally.