Assertion: coccyx's surface | /r/HasProperty | anterior
Facets:
Source sentences:
text: The coccyx consists of an apex, base, anterior surface, posterior surface and two lateral surfaces.
text: The coccyx consists of an anterior and posterior surface, two lateral surfaces, an apex and a base.
text: The coccyx consists of an anterior and posterior surface, two lateral surfaces, and apex and a base.
text: Its anterior surface is where the pelvic floor muscles — the coccygeus and levator ani group — originate.