| Name: | heart tube |
|---|---|
| Synonyms: | |
| Definition: | Cavitated compound organ that will become the adult heart following looping morphogenesis and valve formation. |
| Ontology: | Anatomy Ontology [ZFA:0000360] |
| Name: | absent |
|---|---|
| Synonyms: | absence, absent from organism |
| Definition: | A quality denoting the lack of an entity. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000462] |