brain - neurology, heart - ?

CARDIOLOGY
WordClue
HEADmind, brain
MINDbrain
RATEof exchange or heart
STEMbrain or onion
BRAINcardiology - heart, neurology - ?
HARNSbrain
HEARTneurology - brain, cardiology - ?
LIVERneurology - brain, hepatology - ?
MEDALPurple Heart
TEETHneurology - brain, stomatology - ?
ATRIUMpart of heart
BOWELScore, heart
BRAVERYheart
DARKNESSHeart of ... (Conrad)
NEUROLOGYheart - cardiology, brain - ?
VENTRICLEpart of heart
HEPATOLOGYbrain - neurology, liver - ?
PERICARDIUMpart of heart
STOMATOLOGYbrain - neurology, teeth - ?
ENCEPHALITISInflammation of the brain
HELMETbrain bucket
HEPATOLOGYbrain - neurology, liver - ?