| Term: | photoreceptor outer segment layer photoreceptor disc membrane |
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| Note: | This page represents a term created by the combination ("post-composition") of two ontology terms. For more information on the individual terms, click the hyperlinked name. |
| Name: | photoreceptor outer segment layer |
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| 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: | photoreceptor disc membrane |
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| Synonyms: | |
| Definition: | Stack of disc membranes located inside a photoreceptor outer segment, and containing densely packed molecules of photoreceptor proteins that traverse the lipid bilayer. Disc membranes arise as evaginations of the ciliary membrane during the development of the outer segment and may or may not remain contiguous with the ciliary membrane. |
| Ontology: | GO: Cellular Component [GO:0097381] QuickGO AmiGO |