scala tympaniの例文

• Both the scala vestibuli and the scala tympani contain an extracellular fluid called perilymph.
• This then compresses the scala vestibule into the basilar membrane in the direction toward the scala tympani.
• The RM separates endolymph in the cochlear duct from underlying corticolymph and perilymph of the scala tympani.
• The basilar membrane separates the cochlear duct from the scala tympani, a cavity within the cochlear labyrinth.
• At the apical end of the cochlea, at an opening known as the helicotrema, the scala vestibuli merges with the scala tympani.
• As the cochlear duct s mesenchyme begins to differentiate, three cavities are formed : the scala vestibuli, the scala tympani and the scala media.
• A cross section of the cochlea will reveal an anatomical structure with three main chambers ( scala vestibuli, scala media, and scala tympani ).
• The first half of the duct is now referred to as the scala vestibuli, while the second half, which includes the basilar membrane, is called the scala tympani.
• The perilymph that is found in the scala tympani has a low potassium concentration, whereas the endolymph found in the scala media has a high potassium concentration and an electrical potential of about 80 millivolts compared to the perilymph.
• It reaches about half-way toward the outer wall of the tube, and partially divides its cavity into two passages or scalae, of which the upper is named the scala vestibuli, while the lower is termed the scala tympani.