Wiki User
∙ 11y agoWant this question answered?
Be notified when an answer is posted
cochlear duct
cochlear duct
cochlea *scala vestibuli* and the round window is directly connected to the scala tympani (where sound dissipates)"The scala vestibuli is continuous with the vestibule near the base of the cochlea, where it abuts the oval window."From: Human Anatomy, 5th Edition Marieb, Mallatt, and Wilhelm
Scala vestibule
it is responsible for conducting sound vibrations. Both the scala tympani and scala vestibuli are filled with the fluid known as perilymph.
Round Window
cochlear duct
Perilymph is a fluid present in the scala vestibuli and scala tympani which are the perilymph compartments of the inner ear. It has the same ionic concentration as the extracellular fluid present in the entire body
Perilymph is an extracellular fluid located within the cochlea (part of the ear) in 2 of its 3 compartments; the scala tympani and scala vestibuli. The ionic composition of perilymph is comparable to that of plasma and cerebrospinal fluid. The major cation of perilymph is sodium.
Scala tympani is one of the perilymph-filled cavities in the cochlear labyrinth of the human ear. 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.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. This movement is conveyed to the organ of Cortiinside the scala media, composed of hair cells attached to the basilar membrane and their stereo cilia embedded in the tectorial membrane. The movement of the basilar membrane compared to the tectorial membrane causes the sterocilia to bend. They then depolarise and send impulses to the brain via the cochlear nerve. This produces the sensation of sound.
The semicircular canals, the vestibule, and the cochlea, which are subdivisions of the bony labyrinth. The semicircular canals and the vestibule contain receptors for equilibrium and the cochlea contains receptors for hearing.
Round Window"there are two types of windows inside the ear. the oval window and the round window. The round window serves as a pressure relief valve" Acts_as_a_pressure_relief_valve_for_fluid_in_the_ear