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 shift from the ECF into the ICF
D)vasopressin secretion will decrease
E)sodium excretion will decrease

Question

Quizplus · Accepted Answer

When the extracellular fluid (ECF) osmolarity increases, it means the ECF is more concentrated. Water will move from the intracellular fluid (ICF) to the ECF to balance the osmolarity, following the osmotic gradient.

If the ECF's Osmolarity Increases