Eustachian tube
Fallopian tube
adit
aqueduct
canal
channel
chimney
conduit
course
direction
ditch
egress
emunctory
entrance
exit
fistula
flue
funnel
guidance
ingress
intestines
meatus
ostium
oviduct
passage
passageway
pipe
pore
salpinx
thoracic duct
trench
trough
troughing
troughway
tube
tunnel
ureter
urethra
vagina
vas
vessel
watercourse
way
ducted
ducting
ducts
artery
cavity
drain
exhaust
girder
gland
grille
hose
inlet
nozzle
opening
orifice
outlet
secretion
tubing
valve
vent
ventilation
abduct
bucked
chucked
conduct
construct
deconstruct
deduct
destruct
ducked
fucked
induct
instruct
lucked
obstruct
plucked
reconstruct
shucked
sucked
trucked
tucked