scala vestibuli

In the frontal view there is an elliptical opening which communicates with the scala vestibuli of the cochlea.

It's also clearer if we treat two of the tubes, the scala vestibuli and the scala media, as one chamber.

Sound waves enter the scala vestibuli of the cochlear and travel throughout it, carrying with them various sound frequencies.

It separates scala media from scala vestibuli.

The vestibular wall will separate the cochlear duct from the perilymphatic scala vestibuli, a cavity inside the cochlea.

Reissner's membrane is composed of two cell layers and separates the scala media from the scala vestibuli.

The organ of Corti sits inside the cochlear duct, between the scala vestibuli and the scala tympani.

It is globular in form and lies in the recessus sphæricus near the opening of the scala vestibuli of the cochlea.

Within the cochlea are three fluid filled spaces: the scala tympani, the scala vestibuli and the scala media.

At the apical end of the cochlea, at an opening known as the helicotrema, the scala vestibuli merges with the scala tympani.

A cross section of the cochlea will reveal an anatomical structure with three main chambers (scala vestibuli, scala media, and scala tympani).

The helicotrema is sometimes referred to as "Breschet's hiatus", a passageway that connects the scala tympani and scala vestibuli at the top of the cochlea.

The other two sections are known as the scala tympani and the scala vestibuli, these are located within the bony labyrinth which is filled with fluid called perilymph.

At the top of the snailshell-like coiling tubes, there is a reversal of the direction of the fluid, thus changing the scala vestibuli to the scala tympani.

The perilymph in scala vestibuli and the endolymph in scala media act mechanically as a single duct, being kept apart only by the very thin Reissner's membrane.

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.

It is separated from the scala media by the basilar membrane, and it extends from the round window to the helicotrema, where it continues as scala vestibuli.

Perilymph is an extracellular fluid located within the cochlea (part of the inner ear) in two of its three compartments: the scala tympani and scala vestibuli.

Hair cells in the cochlea are stimulated when the basilar membrane is driven up and down by differences in the fluid pressure between the scala vestibuli and scala tympani.

The scala vestibuli and scala media are separated by Reissner's Membrane whereas the scala media and scala tympani are divided by the basilar membrane.

At the base of the cochlea, each scala ends in a membranous portal that faces the middle ear cavity: The scala vestibuli ends at the oval window, where the footplate of the stapes sits.

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.

The purpose of the perilymph-filled scala tympani and scala vestibuli is to transduce the movement of air that causes the tympanic membrane and the ossicles to vibrate, to movement of liquid and the basilar membrane.

The cochlear duct (or scala media) is an endolymph filled cavity inside the cochlea, located in between the scala tympani and the scala vestibuli, separated by the basilar membrane and Reissner's membrane (the vestibular membrane) respectively.