Male external urethral sphincter
Sphincter externus urethrae masculinae
- Latin synonym: Musculus sphincter externus urethrae masculinae
- Synonym: External sphincter of male urethra; Rhabdosphincter muscle
- Related terms: External urethral sphincter
Definition
Origin: Junction of the inferior rami of the pubis and ischium to the extent of 1.25 to 2 cm., and from the neighboring fasciae
Insertion: Its fellow of the opposite side
Nerve: Perineal branch of the pudendal nerve (S2, S3, S4)
Action: Constricts urethra, maintain urinary continence
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