Assertion: skeletal system's bone | /r/HasProperty | sacrum
Facets:
Source sentences:
text: The irregular bones are the vertebræ, sacrum, coccyx, temporal, sphenoid, ethmoid, zygomatic, maxilla, mandible, palatine, inferior nasal concha, and hyoid.
text: The bones shown in the chest and hip region in the labeled human skeleton diagram are the ribs, vertebrae, pelvis, OS coxae, sacrum and coccyx.