| Name: | trunk | 
|---|---|
| Synonyms: | |
| Definition: | Organism subdivision which is the part of the body posterior to the head and anterior to the post-vent region. | 
| Ontology: | Anatomy Ontology [ZFA:0001115] | 
| Name: | ventral side | 
|---|---|
| Synonyms: | ventral | 
| Definition: | An anatomical region that is the entire part of an anatomical structure ventral to a horizontal plane and bounded on one side by the same horizontal plane. | 
| Ontology: | Spatial Ontology [BSPO:0000068] |