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Definition of Musculus sphincter pupillae
1. Noun. A ring of smooth muscle surrounding the iris.
Exact synonyms: Pupillary Sphincter
Group relationships: Eye, Oculus, Optic
Generic synonyms: Anatomical Sphincter, Sphincter, Sphincter Muscle
Group relationships: Eye, Oculus, Optic
Generic synonyms: Anatomical Sphincter, Sphincter, Sphincter Muscle
Medical Definition of Musculus sphincter pupillae
1. A ring of smooth muscle fibres surrounding the pupillary border of the iris. Synonym: musculus sphincter pupillae, sphincter muscle of pupil. (05 Mar 2000)