Renal hypoplasia, defined as abnormally small kidneys with normal morphology and reduced nephron number, is a common cause of pediatric renal failure and adult-onset disease. Genetic studies ...

Vasopressin (a.k.a. ADH or antidiuretic hormone) helps to regulate water retention by absorbing water in the collecting ducts of the nephron. Blocking this receptor will allow water to be excreted ...

The kidneys The nephron - Higher tier only Anti-diuretic hormone (ADH) Kidney disease How a dialysis machine works - Higher tier only ...

These diagrams show what happens when there is either too little or too much water in the blood.