cerebral mantle vs cerebral cortex

cerebral mantle and cerebral cortex both are nouns.

Word	Noun	Adjective	Verb	Adverb
cerebral mantle	Yes	No	No	No
cerebral cortex	Yes	No	No	No

As nouns, cerebral mantle and cerebral cortex are synonyms defined as:

cerebral mantle and cerebral cortex: the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum

Other synonyms of cerebral mantle include cortex, pallium.

cerebral mantle (noun)	cerebral cortex (noun)
the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum	the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum