Assertion: urethra's sphincter | /r/HasProperty | external
Facets:
Source sentences:
text: The female urethra contains an internal sphincter and an external sphincter.
text: It is also important to note the three constrictions in the male urethra - the internal urethral sphincter, external urethral sphincter, and external urethral orifice.
text: The female urethra contains an internal sphincter and an external sphincter.
text: It is also important to note the three constrictions in the male urethra - the internal urethral sphincter, external urethral sphincter, and external urethral orifice.
text: Males have another sphincter known as internal urethral sphincter.
text: Also, the male urethra has an external sphincter, which functions as a voluntary control.
text: The prostatic urethra is surrounded by the internal urethral sphincter near its middle part; it is widest in the middle.