Assertion: endoscope's tube | /r/ObjectUse | used for examination of the colon
Facets:
Source sentences:
text: The colonoscope, a flexible tube used for examination of the colon, and the proctosigmoidoscope, a similar instrument used for examination of the rectum and lower colon, are passed through the anal orifice; mild sedation and pain medication are typically administered during these procedures.