Term: brain extracellular space
Name: brain
Synonyms: brain structure
Definition: Cavitated compound organ which is comprised of gray and white matter and surrounds the cerebral ventricular system.
Ontology: Anatomy Ontology [ZFA:0000008]

Name: extracellular space
Synonyms: intercellular space
Definition: That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.
Ontology: GO: Cellular Component [GO:0005615]    QuickGO    AmiGO