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Pronunciation varies by accent · noun
(anatomy) The part of the cochlear labyrinth where the scala tympani and the scala vestibuli meet..
These openings may be respectively named the cochlear and vestibular helicotremata, the latter being many degrees larger than the former; so that, should a fluid be poured into the cupola, it will pass into the vestibular rather than the tympanic scala.
The lower tympanic scala begins at the crest of the cochlear fenestra and courses up spirally below the osseous spiral lamina, while the upper vestibular scala begins at the vestibular recess and passes above the spiral membrane to the helicotrema.
We have made measurements on the size of the helicotrema two ways, either by reconstructing the helicotremas from serial sections, or directly in osmium-fixed preparations.
Use helicotrema when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Helicotrema means (anatomy) The part of the cochlear labyrinth where the scala tympani and the scala vestibuli meet..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
These openings may be respectively named the cochlear and vestibular helicotremata, the latter being many degrees larger than the former; so that, should a fluid be poured into the cupola, it will pass into the vestibular rather than the tympanic scala.
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