helicotrema /hel·i·co·tre·ma/ (hel″ĭ-ko-tre´mah) a passage in the ear between the scala tympani and scala vestibuli. 
helicotrema,
)
Helicotrema, shown in the interior of the right bony labyrinth.
hel·i·co·tre·ma (h l  -k -tr  m )n. An opening at the apex of the cochlea that connects the vestibular canal and the scala tympani. |
helicotrema,
a narrow slit at the apex of the cochlea where the two canals of the cochlear duct, the scala vestibuli and the scala tympani, communicate.
helicotrema
the passage that connects the scala tympani and the scala vestibuli at the apex of the cochlea in the internal ear.
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