| Term: | photoreceptor outer segment layer microvillus |
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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: | microvillus |
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| Synonyms: | microvilli |
| Definition: | Thin cylindrical membrane-covered projections on the surface of an animal cell containing a core bundle of actin filaments. Present in especially large numbers on the absorptive surface of intestinal cells. |
| Ontology: | GO: Cellular Component [GO:0005902] QuickGO AmiGO |