Term: atrial myocardium basal region
Name: atrial myocardium
Synonyms:
Definition: Myocardium of the heart atrium.
Ontology: Anatomy Ontology [ZFA:0001374]

Name: basal region
Synonyms:
Definition: Anatomical region located basally on the body or body part.
Ontology: Spatial Ontology [BSPO:0000074]