Assertion: membranous urethra | /r/HasProperty | the segment
Facets:
Source sentences:
text: The male urethra can be divided into three sections: the prostatic urethra (the uppermost segment within the prostate), the membranous urethra (the segment within the urethral sphincter), and the spongy urethra (the lowermost and longest section within the penis).
text: The membranous urethra is the segment surrounded by the urethral sphincter.