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VestibularBase of the cochleaLength of the cochleaModiolusOrganCochlear nerveEndolymphVibrateHearingAnatomyVibrationsAuditoryNeuronsFrequenciesElectrodeSemicircularSnailCanalScala vestibuliOuter hair cellsNerveFrequencyHollowNoiseImplementationConsistsBiologyAcousticImageHumanAxisFluidSegmentSoundYearMODELAreaPrevious workLower

Vestibular1

• The stapes (stirrup) ossicle bone of the middle ear transmits vibrations to the fenestra ovalis (oval window) on the outside of the cochlea, which vibrates the perilymph in the vestibular duct (upper chamber of the cochlea). (wikipedia.org)

Base of the cochlea5

• The organ of Corti is larger and the basilar membrane on which it sits is longer as it gets further away from the base of the cochlea. (bcm.edu)
• The shorter, smaller structures near the base of the cochlea respond best to high frequencies, while the longer, larger structures near the top of cochlea respond best to low frequencies. (bcm.edu)
• The wide base of the cochlea from which this segment comes is towards the bottom of the page. (bcm.edu)
• With either imaging technique, the cochlea appears as a spiral-shaped structure with 2.5 turns and a normal measured height of 5.1 mm (with a range of 4.4 to 5.9 mm). 1 The cochlear turns (basal, middle, and apical) are separated by interscalar septae, a bony plate radiating from the modiolus that forms the base of the cochlea ( Fig. 3.1 ). (neupsykey.com)
• Note the normal appearance of the modiolus ( star ) at the base of the cochlea. (neupsykey.com)

Length of the cochlea2

• This difference in size is consistent with the fact that different frequencies of sound result in greater vibrations of the organ of Corti depending on where along the length of the cochlea you are measuring. (bcm.edu)
• For many years, cochlear fluids were thought to be generated by filtration of blood or cerebrospinal fluid, which then flowed longitudinally down the length of the cochlea to be absorbed through the endolymphatic sac. (medscape.com)

Modiolus3

• The spiral canal of the cochlea is a section of the bony labyrinth of the inner ear that is approximately 30 mm long and makes 23⁄4 turns about the modiolus. (wikipedia.org)
• The spiral lamina that also projects from the modiolus is a microanatomical osseous structure that separates the spiral of the cochlea into scala tympani (inferiorly), scala media, and scala vestibuli (superiorly). (neupsykey.com)
• The fibers of the cochlear nerve originate from an aggregation of nerve cell bodies in the spiral ganglion, located in the modiolus of the cochlea. (medscape.com)

Organ5

• A core component of the cochlea is the Organ of Corti, the sensory organ of hearing, which is distributed along the partition separating the fluid chambers in the coiled tapered tube of the cochlea. (wikipedia.org)
• This action is passed onto the cochlea, a fluid-filled snail-like structure that contains the organ of Corti, the organ for hearing. (medlineplus.gov)
• The hearing organ in mammals is a spiraling structure called the "cochlea" from the Greek word for snail. (bcm.edu)
• Figure 5 shows a short section of the organ of Corti as it spirals in the cochlea. (bcm.edu)
• Within the cochlea is the organ of Corti, which consists, in part, of about 20,000 specialized cells called hair cells. (merckmanuals.com)

Cochlear nerve3

• Imaging of the cochlea, cochlear nerve, brainstem, and auditory system is central to proper candidate selection and surgical planning in the setting of an auditory brainstem implantation. (neupsykey.com)
• The evaluation of the cochlea and cochlear nerve determines the eligibility of the patient for the cochlear versus auditory brainstem implantation. (neupsykey.com)
• Fig. 3.2 Anatomy of the cochlea and cochlear nerve by high-resolution magnetic resonance imaging (MRI). (neupsykey.com)

Endolymph3

• The cochlea is filled with a watery liquid, the endolymph, which moves in response to the vibrations coming from the middle ear via the oval window. (wikipedia.org)
• The cochlear duct, filled with endolymph, lies in the middle of the cochlea, dividing it into thirds, with the scala vestibuli above and the scala tympani below the cochlear duct. (digitalhistology.org)
• The stria vascularis is a type of epithelium that is uniquely able to produce endolymph in the cochlea. (medscape.com)

Vibrate2

• Hair cells in different parts of the cochlea vibrate in response to different sound frequencies and convert the vibrations into nerve impulses. (merckmanuals.com)
• The sound vibrations cause the fluid and cilia in the cochlea to vibrate. (msdmanuals.com)

Hearing4

• The cochlea is the part of the inner ear involved in hearing. (wikipedia.org)
• The cochlea looks very much like a snail and is a vital component in hearing. (alleydog.com)
• The spiral shaped cochlea originates from one of the balance organs and contains the sensory epithelium for hearing. (bcm.edu)
• Ototoxicity involving the cochlea produces hearing loss, usually commencing with high frequencies but often eventually progressing to the lower frequencies that encompass speech. (medscape.com)

Anatomy3

• Anatomy of the cochlea, unlabeled. (alilamedicalmedia.com)
• Detailed anatomy of the cochlea of human ear in cross section, unlabeled version. (alilamedicalmedia.com)
• Fig. 3.1 Computed tomography (CT) anatomy of the cochlea. (neupsykey.com)

Vibrations2

• The cochlea receives sound in the form of vibrations, which cause the stereocilia to move. (wikipedia.org)
• These vibrations are transmitted to three small bones in the middle ear (called ossicles), then through the oval window into the inner ear, where they enter the cochlea. (msdmanuals.com)

Auditory2

• 2) Sensorineuronal (SNHL) Sound signals are not converted into neurological signals, often due to abnormalities of the inner ear (cochlea or auditory nerve). (cochlea.eu)
• Pure-tone (PT) audiometry measures throughout the outer ear, middle ear, cochlea, cranial nerve (CN) VIII, and central auditory system. (medscape.com)

Neurons1

• The neurons of the spiral ganglion are the first of 4 order neurons between the cochlea and the cerebrum. (medscape.com)

Frequencies2

• Position of the receptors for tones of varying frequencies in the spiral canal of the human cochlea. (siemens-stiftung.org)
• To differentiate these frequencies, the receptors for high tones are at the beginning of the canal, those for the low tones at the apex of the cochlea. (siemens-stiftung.org)

Electrode1

• Cochlear implantation involves the insertion of a thin electrode array inside the cochlea. (upf.edu)

Semicircular1

• Cochlea and semicircular canals. (cdc.gov)

Snail2

• The cochlea is a portion of the inner ear that looks like a snail shell (cochlea is Greek for snail). (wikipedia.org)
• The cochlea (from the Greek word meaning "snail") is a bony, spiral-shaped, fluid-filled tube in the inner ear through which sound waves travel and trigger nerve impulses. (alleydog.com)

Canal1

• Help support Wordnik (and make this page ad-free) by adopting the word spiral canal of the cochlea . (wordnik.com)

Scala vestibuli1

• [ 2 ] In contrast, the composition of perilymph resembles that of extracellular fluid and is high in Na + and low in K + . These differences in electrolyte concentrations remain fairly constant throughout the cochlea, although slight differences are noted in the electrolyte composition of scala vestibuli and scala tympani and between the basal and apical portions of scala media. (medscape.com)

Outer hair cells1

• These sounds are produced specifically by the cochlea and, most probably, by the cochlear outer hair cells as they expand and contract. (medscape.com)

Nerve1

• The electrical distribution around the cochlea is computed, and this is coupled with a model of the nerve fibres around the cochlea. (upf.edu)

Frequency1

• Fibers near the upper end of the cochlea resonate to lower frequency sound. (medlineplus.gov)

Hollow3

• The cochlea (PL: cochleae) is a spiraled, hollow, conical chamber of bone, in which waves propagate from the base (near the middle ear and the oval window) to the apex (the top or center of the spiral). (wikipedia.org)
• The walls of the hollow cochlea are made of bone, with a thin, delicate lining of epithelial tissue. (wikipedia.org)
• The cochlea, a hollow tube coiled in the shape of a snail's shell, is filled with fluid. (merckmanuals.com)

Noise1

• Loud noise can damage cells and membranes in the cochlea. (cdc.gov)

Implementation1

• The topic of the case study was the cochlea model, for which the goal was to design a working implementation of the cochlea model on an FPGA. (utwente.nl)

Consists2

• It consists of tiny hair cells that line the cochlea. (medlineplus.gov)
• The cochlea consists of 3 fluid-filled ducts or scalae (see the image below). (medscape.com)

Biology1

• Due to its relatively independent function accompanying its different cellular localization, a deeper understanding of HMGB1 biology in the cochlea is indispensable for guiding future precise therapeutic interventions. (frontiersin.org)

Acoustic2

• However, the type and function of DAMPs in the cochlea following acoustic trauma is rarely clear. (frontiersin.org)
• However, the spatiotemporal expression of HMGB1 in cochlea with acoustic injury has not been systemically investigated. (frontiersin.org)

Image1

• This is manifested by a standing current that can be recorded within the cochlea (see the first image below). (medscape.com)

Human3

• Cochlea draws on Snuff Puppets' 30-year legacy of giant public spectacles and presenting giant Human Body Parts as symbols of our shared humanity. (snuffpuppets.com)
• There are two and a half turns in the human cochlea and if you were to unwind the cochlea it would stretch to nearly an inch in length. (bcm.edu)
• Researchers at Technische Universität Ilmenau, Kiel University, University College Cork, Karlsruher Institute of Technology, and Fraunhofer Institute for Digital Media Technology Ilmenau have engineered a microelectromechanical sensor inspired by the human cochlea that can process sounds and detect individual signals in noisy environments more effectively than current microphones. (interestingengineering.com)

Axis1

• The central axis of the spiraling cochlea is to the left of the drawing. (bcm.edu)

Fluid2

• The ossicles are essential for efficient coupling of sound waves into the cochlea, since the cochlea environment is a fluid-membrane system, and it takes more pressure to move sound through fluid-membrane waves than it does through air. (wikipedia.org)
• The round window is a small, membrane-covered opening between the fluid-filled cochlea and the middle ear. (merckmanuals.com)

Segment1

• This article is the third in a series, "Changing Cochleas", in which I share this new segment in my lifelong pursuit of better communication. (hearinghealthmatters.org)

Sound3

• The high-quality, sterling silver jewelry is inspired by the shape of the cochlea, the part of the ear that gives us the ability to interpret sound. (audbling.com)
• This window helps dampen the pressure caused by sound waves in the cochlea. (merckmanuals.com)
• The response only emanates from the cochlea, but the outer and middle ear must be able to transmit the emitted sound back to the recording microphone. (medscape.com)

Year2

• COCHLEA studia invite dance-artists internationally to work in Athens all through the year. (cochleares.com)
• This graph shows the total number of publications written about "Cochlea" by people in this website by year, and whether "Cochlea" was a major or minor topic of these publications. (wakehealth.edu)

MODEL1

• The cochlea model in its original form proved to be too large to fit on the selected FPGA. (utwente.nl)

Area2

• Is the Subject Area "Cochlea" applicable to this article? (plos.org)
• COCHLEA studia are located at Lycabettus hill area, near Exarcheia & Kolonaki neighbourhoods, two of the most artistic, alive, and diverse places in central Athens, residential and of extraordinary urbanity, including a number of typical Athenian open-air cinemas on walking distance, affordable quality restaurants for every appetite (incl. (cochleares.com)

Previous work1

• The circuit topology extends previous work on cochlea-like channelizers by introducing multiple resonator-channel filter sections. (mit.edu)

Lower1

• From this go out on the upper side the semi-circular canals (x,y,z) and on the lower side of the passages of the cochlea (k). (usf.edu)