brainpan

SKULL
WordClue
BONEskull or pelvis
SCALPthe skull
BEANIEskull cap
OSMIUMOs
ESSENCEThe inherent nature of a thing or idea
OPINIONidea, notion
BRAINPANskull
SENTIMENTopinion, idea
CRANIUMbraincase
TWIGbranch, limb