Home›Urethra›internal sphincter muscle of urethra🌐EnglishEnglishDeutschFrançaisPortuguês中文日本語EntityQ6047943· pop 5· linked from 161 articlesinternal sphincter muscle of urethraAlso known as internal urethral sphincterurethral sphincter muscle which constricts the internal urethral orifice.Available in 5 languagesFrançaisDeutsch日本語Portuguêsvia Wikidata sitelinks · CC0Connectionsrenal medullaEntitycollecting duct systemEntityCategoriesUrethraUrinary system