MeSH definition : The lower chamber of the COCHLEA, extending from the round window to the helicotrema
(the opening at the apex that connects the PERILYMPH-filled spaces of scala tympani
and SCALA VESTIBULI).;
The lower chamber of the COCHLEA, extending from the round window to the helicotrema
(the opening at the apex that connects the PERILYMPH-filled spaces of scala tympani
and SCALA VESTIBULI).