ommatidium [FBbt_00004510]

One of the facets of the compound eye. It is composed of eight light-sensing photoreceptor cells (photoreceptor cell R1-R8) and accessory cells. There are around 800 ommatidia in each compound eye.

Open ommatidium in VFB

VFB Term Json

{
    "term": {
        "core": {
            "iri": "http://purl.obolibrary.org/obo/FBbt_00004510",
            "symbol": "",
            "types": [
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                "Adult",
                "Anatomy",
                "Class",
                "Nervous_system",
                "Sense_organ"
            ],
            "short_form": "FBbt_00004510",
            "label": "ommatidium"
        },
        "description": [
            "One of the facets of the compound eye. It is composed of eight light-sensing photoreceptor cells (photoreceptor cell R1-R8) and accessory cells. There are around 800 ommatidia in each compound eye."
        ],
        "comment": []
    },
    "query": "Get JSON for Class",
    "version": "44725ae",
    "parents": [
        {
            "symbol": "",
            "iri": "http://purl.obolibrary.org/obo/FBbt_00007231",
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                "Entity",
                "Anatomy",
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                "Nervous_system",
                "Sense_organ"
            ],
            "short_form": "FBbt_00007231",
            "label": "external sensillum"
        },
        {
            "symbol": "",
            "iri": "http://purl.obolibrary.org/obo/FBbt_00007241",
            "types": [
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                "Adult",
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            "short_form": "FBbt_00007241",
            "label": "adult head sensillum"
        },
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            "symbol": "",
            "iri": "http://purl.obolibrary.org/obo/FBbt_00005162",
            "types": [
                "Entity",
                "Anatomy",
                "Class",
                "Nervous_system",
                "Sense_organ"
            ],
            "short_form": "FBbt_00005162",
            "label": "photoreceptor"
        }
    ],
    "relationships": [
        {
            "relation": {
                "iri": "http://purl.obolibrary.org/obo/BFO_0000050",
                "label": "is part of",
                "type": "part_of"
            },
            "object": {
                "symbol": "",
                "iri": "http://purl.obolibrary.org/obo/FBbt_00004200",
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                    "Class",
                    "Nervous_system"
                ],
                "short_form": "FBbt_00004200",
                "label": "retina"
            }
        },
        {
            "relation": {
                "iri": "http://purl.obolibrary.org/obo/RO_0002202",
                "label": "develops from",
                "type": "develops_from"
            },
            "object": {
                "symbol": "",
                "iri": "http://purl.obolibrary.org/obo/FBbt_00001770",
                "types": [
                    "Entity",
                    "Anatomy",
                    "Class",
                    "Larva"
                ],
                "short_form": "FBbt_00001770",
                "label": "ommatidial precursor cluster"
            }
        },
        {
            "relation": {
                "iri": "http://purl.obolibrary.org/obo/RO_0002215",
                "label": "capable of",
                "type": "capable_of"
            },
            "object": {
                "symbol": "",
                "iri": "http://purl.obolibrary.org/obo/GO_0050908",
                "types": [
                    "Entity",
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                ],
                "short_form": "GO_0050908",
                "label": "detection of light stimulus involved in visual perception"
            }
        }
    ],
    "xrefs": [],
    "anatomy_channel_image": [],
    "pub_syn": [],
    "def_pubs": [
        {
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                ],
                "short_form": "FBrf0166419",
                "label": "Zombori and Steinmann, 1999, Handbuch der Zoologie IV. Band: Arthropoda, 2. Halfte: Insecta, Teil: 34.: 405pp"
            },
            "FlyBase": "",
            "PubMed": "",
            "DOI": ""
        },
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                ],
                "short_form": "FBrf0180690",
                "label": "Wernet and Desplan, 2004, Trends Cell Biol. 14(10): 576--584"
            },
            "FlyBase": "",
            "PubMed": "15450980",
            "DOI": "10.1016/j.tcb.2004.09.007"
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    ]
}