Term: photoreceptor outer segment layer microvillus
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
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
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