Term: presumptive atrioventricular canal endocardium
Name: presumptive atrioventricular canal
Synonyms:
Definition: Portion of tissue that is part of the heart tube and will become the atrioventricular canal.
Ontology: Anatomy Ontology [ZFA:0001723]

Name: endocardium
Synonyms:
Definition: Layer that lines the lumen of the heart.
Ontology: Anatomy Ontology [ZFA:0001320]