CONTROL OF EXCRETION -

1.      In brain hypothalamus is osmocentre that controls minerals.

2.      Cells of DCT & arterioles combien to form Juxta glomerular node, it secretes ranin that controls renal blood pressure.

3.      In defficiency of O₂, some chemicals excreted from kidney that combines with globuline to form erythropoitein which stimulates erythropoisis.

4.      Endocrine regualtion - A.D.H. or vassopressin increases water absorption in nephron. On its hypoactivity diabetes insipsides (teste less urine) is caused.

• Thyroxine decreses water absorption.
• Aldesterone controls Na & K. Peratharmone stimulates absorption of Ca⁺⁺.

Note :- ADH and Aldasteron controls quantity of urine.

Posted Date: 10/2/2012 4:27:42 AM | Location : United States

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