| 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: | mature B cell |
|---|---|
| Synonyms: | mature B lymphocyte, mature B-cell, mature B-lymphocyte |
| Definition: | A B cell that is mature, having left the bone marrow. Initially, these cells are IgM-positive and IgD-positive, and they can be activated by antigen. |
| Ontology: | Anatomy Ontology [ZFA:0009331] |