Assertion: cerebrum's cortex | /r/HasProperty | thin layer of gray matter
Facets:
Source sentences:
text: Cerebral cortex-a thin layer of gray matter forming the outermost part of the cerebrum
text: The cortex (thin layer of tissue) is gray because nerves in this area lack the insulation that makes most other parts of the brain appear to be white.
text: The cerebral cortex is the thin layer of the brain that covers the outer portion (1.5mm to 5mm) of the cerebrum.
text: The cerebrum is one of the four main regions of the brain, while the cerebral cortex is a thin layer of gray matter that covers the surface of the cerebrum.