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Definition of Musculus sphincter vesicae
1. Noun. The sphincter muscle of the urinary bladder; made up of a thickened muscular layer of bladder around the urethral opening.
Exact synonyms: Bladder Sphincter
Group relationships: Urinary Bladder
Generic synonyms: Anatomical Sphincter, Sphincter, Sphincter Muscle
Group relationships: Urinary Bladder
Generic synonyms: Anatomical Sphincter, Sphincter, Sphincter Muscle
Medical Definition of Musculus sphincter vesicae
1. The complete collar of smooth muscle cells of the neck of the urinary bladder which extend distally to surround the preprostatic sportion of the male urethra. There is not a comparable structure in the neck of the femoral bladder; the internal urethral sphincter may exist to prevent reflux of semen into bladder. Synonym: annulus urethralis, internal urethral sphincter, musculus sphincter vesicae, preprostate urethral sphincter, proximal urethral sphincter, sphincter muscle of urinary bladder. (05 Mar 2000)
Lexicographical Neighbors of Musculus Sphincter Vesicae
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