MeSH definition : Interstitial space between cells, occupied by INTERSTITIAL FLUID as well as amorphous
and fibrous substances. For organisms with a CELL WALL, the extracellular space includes
everything outside of the CELL MEMBRANE including the PERIPLASM and the cell wall.;
Interstitial space between cells, occupied by INTERSTITIAL FLUID as well as amorphous
and fibrous substances. For organisms with a CELL WALL, the extracellular space includes
everything outside of the CELL MEMBRANE including the PERIPLASM and the cell wall.