| Phenotype: | retinal rod cell photoreceptor outer segment absent, abnormal |
|---|---|
| Note: | This statement combines anatomy and/or ontology terms with phenotype quality terms to create a complete phenotype (EQ) statement. For detailed information on individual terms, click the hyperlinked term name. |
| Name: | retinal rod cell |
|---|---|
| Synonyms: | retinal rod cells |
| Definition: | One of the two photoreceptor cell types of the vertebrate retina. In rods the photopigment is in stacks of membranous disks separate from the outer cell membrane. Rods are more sensitive to light than cones, but rod mediated vision has less spatial and temporal resolution than cone vision. |
| Ontology: | Anatomy Ontology [ZFA:0009275] |
| Name: | photoreceptor outer segment |
|---|---|
| Synonyms: | |
| Definition: | The outer segment of a vertebrate photoreceptor that contains a stack of membrane discs embedded with photoreceptor proteins. |
| Ontology: | GO: Cellular Component [GO:0001750] QuickGO AmiGO |
| Name: | absent |
|---|---|
| Synonyms: | absence, absent from organism |
| Definition: | A quality denoting the lack of an entity. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000462] |