Sunday, 6 November 2011

2.74 - ADH

ADH - Anti Diuretic Hormone
Produced in the Hypothalamus (a part in the brain) - flows through the blood stream to it's target (the kidney)
ADH - controls and alters the composition of water in blood
Tissue is isotonic with the cytoplasm of the cell
ADH - targets the collecting duct (more accurate then kidney)
- It allows more water to come out of the collecting duct

- Collecting Duct: Where water is selectively reabsorbed into the blood
- this water goes back into the blood
- consequence of ADH secretion - Urine coming out will be more concentrated and will have a lower volume

- ADH response to a hot day
- ADH response to a cold day
- ADH response to dehydration



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