Question

What increases the reabsorption of Na+ when stimulated by aldosterone?

Answer 1

The permeability of proximal tubule of the kidney towards sodium ions increase .

Explanation:

If decreased blood pressure is detected, the adrenal gland is stimulated by these stretch receptors to release aldosterone, which increases sodium reabsorption from the urine, sweat, and the gut. This causes increased osmolarity in the extracellular fluid, which will eventually return blood pressure toward normal.