| Name: | myoblast | 
|---|---|
| Synonyms: | myoblasts | 
| Definition: | An embryonic (precursor) cell of the myogenic lineage that develops from the mesoderm. They undergo proliferation, migrate to their various sites, and then differentiate into the appropriate form of myocytes. | 
| Ontology: | Anatomy Ontology [ZFA:0009025] | 
| Name: | mitochondrial envelope | 
|---|---|
| Synonyms: | |
| Definition: | The double lipid bilayer enclosing the mitochondrion and separating its contents from the cell cytoplasm; includes the intermembrane space. | 
| Ontology: | GO: Cellular Component [GO:0005740] QuickGO AmiGO |