Blood vessels contain one of the body’s three fluid compartments. Is the fluid contained within called plasma, intracellular fluid, interstitial fluid, or cytoplasm?
The fluid compartment of the body
Our body is about 60% water. Of this, 40% is inside cell, called Intracellular Fluid and the remaining 20% is Extracellular Fluid (fluid outside cell).
This extracellular fluid has two compartments : Interstitial fluid and Plasma. Plasma stays inside blood vessels. It is about 20% of the extracellular fluid.