Human Physiology and Pathology-Regulation of blood pressure and volume

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  • Created by: jessica
  • Created on: 19-04-13 20:02
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  • Regulation of blood pressure and volume
    • Low bp causes kidneys to release renin
      • this converts angiotensinogen in angiotensin 1
        • converts into angiotensin 2, which acts on adrenal cortex to produce aldosterone
          • causes kidneys to reabsorb water and sodium
            • causes blood pressure to rise
              • blood pressure too high there is an increased blood volume
                • heart muscle releases atrial natriuretic hormone
                  • stops renin secretion
                    • causes sodium and water to be excreted causing blood pressure to drop


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