smooth muscle sphincter [UBERON_0007521]

{
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            "short_form": "UBERON_0007521",
            "label": "smooth muscle sphincter"
        },
        "description": [
            "A ring of smooth muscle cells whose contraction closes the opening of the ring."
        ],
        "comment": []
    },
    "query": "Get JSON for Class",
    "version": "44725ae",
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            "iri": "http://purl.obolibrary.org/obo/UBERON_0004590",
            "types": [
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            "short_form": "UBERON_0004590",
            "label": "sphincter muscle"
        }
    ],
    "relationships": [
        {
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                "short_form": "CL_0000192",
                "label": "smooth muscle cell"
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        {
            "relation": {
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            "object": {
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                "short_form": "UBERON_0001135",
                "label": "smooth muscle tissue"
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    "xrefs": [],
    "anatomy_channel_image": [],
    "pub_syn": [],
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            "PubMed": "",
            "DOI": ""
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}