The extracellular fluid compartment contains all the fluids outside the cells and is further divided into two major subcomponents: intravascular fluid contained in blood vessels and interstitial fluid found in the tissue spaces.

Where is intravascular fluid found?

The extracellular fluid compartment contains all the fluids outside the cells and is further divided into two major subcomponents: intravascular fluid contained in blood vessels and interstitial fluid found in the tissue spaces.

How much intravascular fluid is in the human body?

The ECF compartment is divided into the interstitial fluid volume – the fluid outside both the cells and the blood vessels – and the intravascular volume (also called the vascular volume and blood plasma volume) – the fluid inside the blood vessels – in a three-to-one ratio: the interstitial fluid volume is about 12 ...