Assertion: central nervous system | /r/HasProperty | enclosed
Facets:
Source sentences:
text: The CNS is enclosed and protected by the meninges, a three-layered system of membranes, including a tough, leathery outer layer called the dura mater.
text: The CNS is enclosed and protected by meninges, a three-layered system of membranes, including a tough, leathery outer layer called the dura mater.