| 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: | natural killer cell |
|---|---|
| Synonyms: | large granular lymphocyte, NK cell, null cell |
| Definition: | A lymphocyte that can spontaneously kill a variety of target cells without prior antigenic activation via germline encoded activation receptors and also regulate immune responses via cytokine release and direct contact with other cells. |
| Ontology: | Anatomy Ontology [ZFA:0009278] |
| Name: | absent |
|---|---|
| Synonyms: | absence, absent from organism |
| Definition: | A quality denoting the lack of an entity. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000462] |