What is the smallest fluid subcompartment of extracellular water?

Question

Quizplus · Accepted Answer

The smallest fluid subcompartment of extracellular water is transcellular, which includes fluids that are enclosed within epithelial lined spaces (e.g. cerebrospinal fluid, synovial fluid, pleural fluid, peritoneal fluid). Interstitial fluid is a larger subcompartment of extracellular water that surrounds and bathes cells, intravascular fluid is the fluid within blood vessels, and intraorganelle fluid is the fluid within organelles such as mitochondria and the endoplasmic reticulum.

What Is the Smallest Fluid Subcompartment of Extracellular Water