scala vestibuli
Quick Summary
The scala vestibuli is a chamber within the cochlea, a spiral-shaped cavity in the inner ear responsible for hearing. It is one of three sections of the bony labyrinth, alongside the vestibule and semicircular canals.12
The cochlea is divided into three fluid-filled compartments: the scala vestibuli, the scala tympani, and the cochlear duct (scala media). The scala vestibuli and scala tympani are filled with perilymph, while the cochlear duct contains endolymph. The scala vestibuli begins near the middle ear at the oval window and communicates with the scala tympani at the apex of the cochlea through an opening called the helicotrema. Vibrations from sound waves travel through the perilymph of the scala vestibuli, initiating the process of hearing.12
Ask Britannica AI about this topic
Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.
human earStructure of the cochlea…an upper chamber called the scala vestibuli (vestibular ramp) and a lower chamber called the scala tympani (tympanic ramp). The scala vestibuli and scala tympani, which are filled with perilymph, communicate with each other through an opening at the apex of the cochlea, called the helicotrema, which can be seen…
Read More…an upper chamber called the scala vestibuli (vestibular ramp) and a lower chamber called the scala tympani (tympanic ramp). The scala vestibuli and scala tympani, which are filled with perilymph, communicate with each other through an opening at the apex of the cochlea, called the helicotrema, which can be seen…
Read More- human earTransmission of sound by air conduction
… of the vestibule and the scala vestibuli.
Read More… of the vestibule and the scala vestibuli.
Read More - human earFunction of the ossicular chain
…in the perilymph of the scala vestibuli would be opposed by those in the perilymph of the scala tympani, and little effective movement of the basilar membrane would result. As it is, sound is delivered selectively to the oval window, and the round window moves in reciprocal fashion, bulging outward…
Read More…in the perilymph of the scala vestibuli would be opposed by those in the perilymph of the scala tympani, and little effective movement of the basilar membrane would result. As it is, sound is delivered selectively to the oval window, and the round window moves in reciprocal fashion, bulging outward…
Read More - human earTransduction of mechanical vibrations
…potential, is contained in the scala vestibuli and scala tympani and bathes the lower parts of the hair cells. The inside of the hair cell has a negative intracellular potential of -60 millivolts with respect to the perilymph and -140 millivolts with respect to the endolymph. This rather steep gradient,…
Read More…potential, is contained in the scala vestibuli and scala tympani and bathes the lower parts of the hair cells. The inside of the hair cell has a negative intracellular potential of -60 millivolts with respect to the perilymph and -140 millivolts with respect to the endolymph. This rather steep gradient,…
Read More