Term: heart extracellular space
Name: heart
Synonyms:
Definition: Blood pumping organ composed of four components: sinus venosus, atrium, cardiac ventricle and bulbus arteriosus.
Ontology: Anatomy Ontology [ZFA:0000114]

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