| Name: | photoreceptor outer segment layer |
|---|---|
| Synonyms: | photoreceptor outer segment layers |
| Definition: | Layer of the retina composed of the outer segments of the photoreceptor cells. The photoreceptor outer segment is a specialized primary cilium consisting of a microtubule-based axoneme and regular stacks of membrane folds or disks containing the photopigments (opsins) required for the phototransduction cascade. |
| Ontology: | Anatomy Ontology [ZFA:0001466] |
| Name: | lysosome |
|---|---|
| Synonyms: | |
| Definition: | A small lytic vacuole that has cell cycle-independent morphology found in most animal cells and that contains a variety of hydrolases, most of which have their maximal activities in the pH range 5-6. The contained enzymes display latency if properly isolated. About 40 different lysosomal hydrolases are known and lysosomes have a great variety of morphologies and functions. |
| Ontology: | GO: Cellular Component [GO:0005764] QuickGO AmiGO |
| Name: | increased amount |
|---|---|
| Synonyms: | accessory, increased, increased number, present in greater numbers in organism, supernumerary |
| Definition: | An amount which is relatively high. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000470] |