Term: photoreceptor cell ventral side
Name: photoreceptor cell
Synonyms: photoreceptor cells
Definition: A cell specialized to detect and transduce light.
Ontology: Anatomy Ontology [ZFA:0009127]

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]