Assertion: pia mater | /r/LocatedNear | spinal cord
Facets:
value: for protection
type: PURPOSE
Source sentences:
text: The pia mater surrounds the spinal cord, the roots of the spinal nerves and the initial portion of the terminal filament.
text: The pia mater surrounds the spinal cord, the roots of the spinal nerves and the initial portion of the terminal filament.
text: The pia mater surrounds the spinal cord, the roots of the spinal nerves and the initial portion of the terminal filament.
text: Pia maters surround the spinal cord for protection