Assertion: rectum | /r/CapableOf | fill with fece
Facets:
Source sentences:
text: Intra-rectal pressure builds as the rectum fills with feces, pushing the feces against the walls of the anal canal.
text: As the rectum fills with feces, the walls of the anus expand, causing stretch receptors to send signals to the brain, which then creates an urge to defecate.