scala tympani


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Related to scala tympani: Scala media, scala vestibuli, vestibular membrane

scala

 [ska´lah] (L.)
a ladderlike structure, especially any of various passages of the cochlea.
scala me´dia cochlear duct.
scala tym´pani the part of the cochlea below the spiral lamina.
scala vesti´buli the part of the cochlea above the spiral lamina.

sca·la tym·'pa·ni

[TA]
the division of the spiral canal of the cochlea lying on the basal side of the spiral lamina.

scala tympani

(tĭm′pə-nī′)
n. pl. scalae tympanorum (-nôr′əm)
The lowermost of the three divisions of the spiral cavity winding around the modiolus of the cochlea in the inner ear. It is filled with perilymph and transmits sound vibrations from the scala vestibuli, with which it is contiguous at the apex of the cochlea.

scala tympani

See helicotrema.

sca·la tym·pa·ni

(skā'lă tim'păn-ī) [TA]
The division of the spiral canal of the cochlea lying on the basal side of the spiral lamina.

scala tympani

A fluid-filled passage in the cochlea running on the outside of the cochlear duct from the tip of the basilar membrane at the HELICOTREMA to the round window in the middle ear where it communicates with the scala verstibuli.

scala tympani

the lower chamber of the cochlea in mammals, filled with perilymph which ends in the fenestra rotunda. It connects with the scala vestibuli via the helicotrema.

scala

pl. scalae [L.] a ladder-like structure, applied especially to various passages of the cochlea.

scala media
the cochlear duct: a space in the ear between Reissner's membrane and the basilar membrane.
scala tympani
the part of the cochlea below the spiral lamina.
scala vestibuli
the part of the cochlea above the spiral lamina.
References in periodicals archive ?
The most frequent site of ossification is the basal turn of the scala tympani (2,3).
Scala vestibule insertion in cochlear implantation: a valuable alternative for cases with obstructed scala tympani.
first focused their research on inserting a molded electrode array in the scala tympani to fill the space [33-34], thus limiting the spread of current around it.
The model findings were then evaluated in the experimental animal with comparisons of current distributions in the terminal auditory nerve fibers for monopolar as well as bipolar stimulation in the scala tympani (Figure 5) and between electrodes placed in the scala tympani and the scala vestibuli.
A transparent model of the human scala tympani cavity.
Electrode Manufacturer Type Cochlear Banded[TM] Cochlear Limited Straight Spiral Clarion[TM] Advanced Bionics Spiral Cochlear Contour [TM] Cochlear Limited Spiral HiFocus II[TM] with Positioner <400[degrees] Advanced Bionics Curved with Positioner HiFocus II[TM] with Positioner >400[degrees] Advanced Bionics Curved with Positioner Contour Advance[TM] Cochlear Limited Spiral Nurobiosys Nurobiosys Straight Helix[TM] Advanced Bionics Spiral Prototype 1 Advanced Bionics Curved Scala Tympani Electrode Position No.
20) In addition, no deleterious effects on auditory function as measured by auditory brainstemevoked response testing were observed when leupeptin was continuously administered for 4 days to the scala tympani of chinchillas.
7,8] They found that perfusion of air into the scala tympani resulted in a drastic decrease in the cochlear microphonics and in the amplitude of the compound action potential.
33] In contrast, Fukuda et al found that scala tympani inoculation with cytomegalovirus following systemic cytomegalovirus infection of guinea pigs did not lead to a humoral immune response in either serum or perilymph.