| Name: | pupil | 
|---|---|
| Synonyms: | pupils | 
| Definition: | Anatomical space that is located in the center of the iris and allows light to impinge on the retina. | 
| Ontology: | Anatomy Ontology [ZFA:0001283] | 
| 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] |