| Name: | head kidney |
|---|---|
| Synonyms: | anterior kidney, kidney marrow |
| Definition: | The zebrafish head kidney consists of fused bilateral lobes located in the anterior part of the kidney. It is analogous to the mammalian bone marrow and the primary site of definitive hematopoiesis. |
| Ontology: | Anatomy Ontology [ZFA:0000669] |
| Name: | pro-B cell |
|---|---|
| Synonyms: | pro-B lymphocyte, pro-B-cell, pro-B-lymphocyte, progenitor B cell |
| Definition: | A progenitor cell of the B cell lineage, with some lineage specific activity such as early stages of recombination of B cell receptor genes, but not yet fully committed to the B cell lineage until the expression of PAX5 occurs. |
| Ontology: | Anatomy Ontology [ZFA:0009349] |