11/06/2011

2.74- ADH

Describe the role of ADH in regulating the water content of the blood


ADH- Anti- Diuretic Hormone

  • It is produced in a region of the brain known as the Hypothalamus
  • It flows through the blood streams to the kidney
  • Its effect is to control and alter the quantity of water in blood
  • The tissue fluid should be isotonic with the cells
  • ADH targets the collecting duct
  • It allows more water to come out of the collecting duct
  • ADH makes the collecting duct walls more porous
  • Consequences of ADH- urine becomes more concentrated and the volume decreases





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