Term: atrium membrane
Name: atrium
Synonyms:
Definition: Cavitated compound organ that receives inflow of deoxygenated blood and delivers it to a muscular cardiac ventricle. Valves are present to direct flow. There are only two chambers present in the fish heart.
Ontology: Anatomy Ontology [ZFA:0000471]

Name: membrane
Synonyms: integral component of membrane, integral to membrane, membrane region, region of membrane, whole membrane
Definition: A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.
Ontology: GO: Cellular Component [GO:0016020]    QuickGO    AmiGO