Extracellular Space

Extracellular Spaces; Intercellular Spaces; Space, Extracellular; Space, Intercellular; Spaces, Extracellular; Spaces, Intercellular
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.