If sodium increases in the ECF, water will move from
A) cells to the ECF, and cells will swell.
B) the ECF to cells, and cells will swell.
C) cells to the ECF, and cells will shrink.
D) the ECF to cells, and cells will shrink.

Question

Quizplus · Accepted Answer

When sodium concentration increases in the extracellular fluid (ECF), it creates a higher osmotic pressure outside the cells. Water moves from areas of lower solute concentration (inside the cells) to areas of higher solute concentration (ECF) to balance the concentration. This movement of water out of the cells causes them to shrink.

If Sodium Increases in the ECF, Water Will Move from