| Name: | retinal photoreceptor layer |
|---|---|
| Synonyms: | retinal photoreceptor layers |
| Definition: | The layer within the retina where the photoreceptor cell receptor segments reside. This layer is closest to the sclera. |
| Ontology: | Anatomy Ontology [ZFA:0000143] |
| Name: | has fewer parts of type |
|---|---|
| Synonyms: | decreased number of, has decreased number of, has fewer physical parts of type |
| Definition: | The bearer of this quality has_part < n AND has_part > 0 of the indicated entity type, where n is the normal amount for a comparable organism. Note that the bearer of the quality is the whole, not the part. Formally: If a bearer entity e has fewer parts of type X at time t, then the number of instances x of X at t such that x part_of e is < n, where n is either the normal number for comparable entities, or n is stated explicitly. |
| Ontology: | Phenotypic Quality Ontology [PATO:0002001] |
| Name: | retinal cone cell |
|---|---|
| Synonyms: | retinal cone cells |
| Definition: | One of the two photoreceptor cell types in the vertebrate retina. In cones the photopigment is in invaginations of the cell membrane of the outer segment. Cones are less sensitive to light than rods, but they provide vision with higher spatial and temporal acuity, and the combination of signals from cones with different pigments allows color vision. |
| Ontology: | Anatomy Ontology [ZFA:0009262] |