| Name: | blood island |
|---|---|
| Synonyms: | blood islands, caudal hematopoietic tissue, posterior blood island, posterior ICM |
| Definition: | Nests of developing blood cells arising late in the segmentation period from the intermediate mass, and located in the anterior-ventral tail, just posterior to the yolk extension. |
| Ontology: | Anatomy Ontology [ZFA:0000094] |
| Name: | hematopoietic multipotent progenitor cell |
|---|---|
| Synonyms: | hemopoietic progenitor cell |
| Definition: | A hematopoietic multipotent progenitor cell is multipotent, but not capable of long-term self-renewal. These cells are characterized as lacking lineage cell surface markers and being CD34-positive in both mice and humans. |
| Ontology: | Anatomy Ontology [ZFA:0009354] |
| Name: | absent |
|---|---|
| Synonyms: | absence, absent from organism |
| Definition: | A quality denoting the lack of an entity. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000462] |