Term: presumptive atrium heart tube cardiac muscle cell
Name: presumptive atrium heart tube
Synonyms:
Definition: Multi-tissue structure that is part of the heart tube and will become the cardiac atrium.
Ontology: Anatomy Ontology [ZFA:0001718]

Name: cardiac muscle cell
Synonyms: cardiac muscle cells, cardiac myocyte, cardiomyocyte
Definition:
Ontology: Anatomy Ontology [ZFA:0009316]