abysm
abyss
amputate
arachnoid
arbor vitae
archipallium
arroyo
ax
between brain
bisect
box canyon
brain stem
breach
break
break open
break up
breakage
broach
burst
bust
butcher
caesura
canyon
carve
cavity
cerebellar hemispheres
cerebellum
cerebral cortex
cerebrospinal fluid
cerebrum
cessation
chap
chasm
check
chimney
chink
chip
chop
cleave
cleft
cleuch
clough
col
come apart
come unstuck
convolution
corpus callosum
corpus striatum
crack
depression
impression
imprint
fissured
fissures
fissuring
cavern
crag
cranny
crater
crevasse
crevice
furrow
gash
groove
indentation
ledge
opening
ravine
ridge
rift
seam
slit
Fischer
Fisher
disher
fisher
swisher
wisher