Reabsorption

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In

Renin–angiotensin system:

1. The kidneys sense low blood pressure.
2. Release renin into the blood.
3. Renin causes production of
   angiotensin I
   .
4. angiotensin II
   .
5. Angiotensin II stimulates the release of aldosterone, ADH, and thirst.
6. Aldosterone causes kidneys to reabsorb sodium; ADH increases the uptake of water.
7. Water follows sodium.
8. As blood volume increases, pressure also increases.

See also

• Transepithelial potential difference driving reabsorption

References