| Term: | photoreceptor cell synaptic ribbon |
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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 cell |
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| Synonyms: | photoreceptor cells |
| Definition: | A cell specialized to detect and transduce light. |
| Ontology: | Anatomy Ontology [ZFA:0009127] |
| Name: | synaptic ribbon |
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| Synonyms: | |
| Definition: | A non-membrane bound, electron dense structure associated that extends perpendicular to the presynaptic membrane in ribbon synapses. The ribbon's surface is studded with small particles to which synaptic vesicles tether via fine filaments. The tethered vesicles function as a pool, several fold greater than the docked pool available for fast release, which supports sustained release of vesicles. Synaptic ribbons may be plate like or spherical. |
| Ontology: | GO: Cellular Component [GO:0098681] QuickGO AmiGO |