The helicotrema is a small, fluid-filled channel located:
a. At the apex of the cochlea
b. Beneath the capsule of a muscle spindle
c. In the nasal cavity
d. Near the oval window of the middle ear
e. Within the organ of Corti
ANS: A
The helicotrema is the site at which the perilymph of the scala vestibuli becomes continuous with the perilymph of the scala tympani.
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