| Name: | post-vent region |
|---|---|
| Synonyms: | tail |
| Definition: | Organism subdivision which is the part of the body posterior to the vent which includes the anal and caudal fins. |
| Ontology: | Anatomy Ontology [ZFA:0001117] |
| Name: | intersegmental vessel |
|---|---|
| Synonyms: | intersegmental vessels, intersomitic vessels, segmental vessel |
| Definition: | Blood vessels that connect the dorsal aorta or the posterior cardinal vein and the dorsal longitudinal anastomotic vessel. They run along the vertical myotomal boundaries. At early stages these vessels don't have venous or arterial markers. |
| Ontology: | Anatomy Ontology [ZFA:0001285] |
| Name: | decreased mass density |
|---|---|
| Synonyms: | low density |
| Definition: | A density which is lower relative to the normal or average. |
| Ontology: | Phenotypic Quality Ontology [PATO:0001790] |