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urethral sphincter
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Noun
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urethral
sphincter
(
plural
urethral sphincters
)
English
Wikipedia
has an article on:
urethral sphincter
Wikipedia
(
anatomy
)
The collective
muscles
used to control the flow of
urine
from the urinary
bladder
. These muscles surround the
urethra
, so that when they contract, the urethra is closed.