Term: primitive heart tube endothelial cell
Name: primitive heart tube
Synonyms:
Definition: Multi-tissue structure that arises from the heart rudiment and will become the heart tube.
Ontology: Anatomy Ontology [ZFA:0000149]

Name: endothelial cell
Synonyms: endothelial cells
Definition:
Ontology: Anatomy Ontology [ZFA:0009065]