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Sphincter

German: Ringmuskel

1 Definition

A sphincter is a muscle that has circular fiber pathways and encloses an opening as a ring.

2 Incidence

Organ Name Art
Eye lid Musculus orbicularis oculi striated
Urinary bladder Musculus sphincter urethrae internus smooth
Urinary bladder Musculus sphincter urethrae externus striated
Anus Musculus sphincter ani internus smooth
Anus Musculus sphincter ani externus striated
Stomach Pylorus smooth
Mouth Musculus orbicularis oris striated
Eye Musculus sphincter pupillae smooth
Eye Musculus ciliaris smooth

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Specialties: Anatomy

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