In renal physiology, renal chloride reabsorption refers to the process by which the kidneys, having filtered out waste products from the blood to be excreted as urine, re-absorb chloride ions from the waste.
| Characteristic | proximal tubule | loop of Henle | Distal convoluted tubule | Collecting duct system | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| S1 | S2 | S3 | descending limb | thin ascending limb | thick ascending limb | connecting tubule | initial collecting tubule | cortical collecting ducts | medullary collecting ducts | ||
| reabsorption (%) | |||||||||||
| reabsorption (mmoles/day) | |||||||||||
| Concentration (mM) | 115 | 135 | |||||||||
| electrical driving force (mV) | −3[1] | +3 | +15 | −5 to +5 | −40 | ||||||
| chemical driving force (mV) | |||||||||||
| electrochemical driving force (mV) | (positive) [2] | ||||||||||
| apical transport proteins | (passively) |
| |||||||||
| basolateral transport proteins | |||||||||||
| Other reabsorption features | |||||||||||