If the ECF's osmolarity increases
A) water will shift from the ICF into the ECF.
B) water will not shift between the ECF and the ICF.
C) water will move from the ECF into the ICF.
D) vasopressin secretion will decrease.
E) potassium and sodium will compensate.

Question

Quizplus · Accepted Answer

When the extracellular fluid (ECF) osmolarity increases, it becomes hypertonic relative to the intracellular fluid (ICF), causing water to move out of the cells (ICF) into the ECF to balance the osmotic pressure.

If the ECF's Osmolarity Increases