Assertion: vertebra's part | /r/HasProperty | nucleus pulposus
Facets:
Source sentences:
text: Each vertebral disc has two parts; the nucleus pulposus and annulus fibrosus.
text: These disks are composed of 4 parts: the nucleus pulposus in the middle, the annulus fibrosis surrounding the nucleus, and 2 end plates that are attached to the adjacent vertebral bodies.