Term: atrium apical plasma 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: apical plasma membrane
Synonyms:
Definition: The region of the plasma membrane located at the apical end of the cell.
Ontology: GO: Cellular Component [GO:0016324]    QuickGO    AmiGO