Term: primitive heart tube myocardial precursor
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: myocardial precursor
Synonyms:
Definition: Portion of tissue that will develop into the myocardium.
Ontology: Anatomy Ontology [ZFA:0005490]