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User:Peter Chamberlain

Hi Peter, this is your user page! In case you haven't been contributing anonymously for ages, welcome to Wikipedia! KF 12:38 Apr 17, 2003 (UTC)

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Urethra

... external urethral sphincter is the skeletal muscle that allows voluntary control over urination. In the human female, the urethra is about 1-1.5 inches (25-38 mm) long ...