as a lover of the mola, I disagree with the conclusions Scout Burns draws, but give mad points for style and execution. 10/10 Facebook rant. Agree with Bob and other pelagic researchersâ¦ molas are awesome, fast, predators that given their numbers and chosen prey must play an integral role in the open ocean ecosystem.
1 Sodium ions are one of the dominant extracellular ions. 2  Aldosterone increases sodium reabsorption from the filtrate. 3  ADH increases water reabsorption from the nephron, and atrial natriuretic hormone increases sodium loss in the urine. 4  Aldosterone increases potassium secretion in the urine.
The amount of sodium in the fluid influences its volume, which in turn determines blood volume and blood pressure. Most of the solute reabsorbed in the proximal tubule is in the form of sodium bicarbonate and sodium chloride, and about 70% of the sodium reabsorption occurs here. Sodium reabsorption is tightly coupled to passive water reabsorption, meaning when sodium moves, water follows.