| Name: | caudal hematopoietic tissue | 
|---|---|
| Synonyms: | |
| Definition: | Tissue that lies between the caudal artery and the caudal vein plexus where definitive hematopoiesis occurs after 48hpf and before the hematopoietic progenitors migrate to the thymus and kidney. | 
| Ontology: | Anatomy Ontology [ZFA:0005898] | 
| Name: | nerve | 
|---|---|
| Synonyms: | nerves | 
| Definition: | A portion of tissue which is a fasciculated group of axons. Many time axons in the nerve are enveloped by the glial cells of the peripheral nervous system, the Schwann cells. | 
| Ontology: | Anatomy Ontology [ZFA:0007009] |