| Name: | pharyngeal arch 4 | 
|---|---|
| Synonyms: | branchial arch 2, gill arch 2, visceral arch 4 | 
| Definition: | |
| Ontology: | Anatomy Ontology [ZFA:0001607] | 
| Name: | mesenchymal cell | 
|---|---|
| Synonyms: | mesenchymal cells | 
| Definition: | A cell that normally gives rise to other cells that are organized as three-dimensional masses, rather than sheets. | 
| Ontology: | Anatomy Ontology [ZFA:0009081] |