Cochlea Dissection
Cochlea Dissection - Related Videos
12:02
Whole Mount Dissection and Immunofluorescence of the Adult Mouse Cochlea
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Cited by 85 •
2016
We present a method to isolate the adult organ of Corti as three intact cochlear turns (apex, middle, and base). We also demonstrate a procedure for immunostaining with fluorescently tagged antibodies. Together these techniques allow the study of hair cells, supporting cells, and other cell types found in the cochlea.
01:13
The Cochlea
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2025
The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane. The basilar membrane extends from the basal end of the cochlea near the oval window to the apical end at its tip. Although...
07:07
Evaluation of Planar-Cell-Polarity Phenotypes in Ciliopathy Mouse Mutant Cochlea
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Cited by 8 •
2016
Primary cilia influence various signaling pathways. The mammalian cochlea is ideal for examining planar cell polarity (PCP) signaling. Cilia dysfunction affects cochlear outgrowth, cellular patterning and hair cell orientation, readouts of PCP. Our goal is to analyze PCP signaling in mouse cochlea via phenotypic analysis, immunohistochemistry and scanning electron microscopy.
04:47
Evaluation of Ribbon Synapses at Specific Frequency Regions of Mouse Cochlea
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2025
This video demonstrates a method for evaluating ribbon synapses in specific regions of the mouse cochlea. It utilizes immunostaining and confocal imaging techniques to identify functional synapses across different frequency regions in each cochlear turn.
11:13
Dissection of Adult Mouse Utricle and Adenovirus-mediated Supporting-cell Infection
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Cited by 18 •
2012
Mechanosensory hair cells are the receptor cells of the inner ear. The best-characterized in vitro model system of mature mammalian hair cells utilizes organ cultures of utricles from adult mice. We present the dissection of the adult mouse utricle, and we demonstrate adenovirus-mediated infection of supporting cells in cultured utricles.
FAQs
Examining the cochlear turns and fluid-filled compartments helps researchers relate the spiral arrangement to the organization of auditory tissue. The dissection can reveal how the organ of Corti is positioned within these compartments and how sensory elements align along the cochlea. This spatial information supports interpretation of hair-cell distribution, sound-transduction studies, and structural changes associated with hearing disorders.
The organ of Corti contains the sensory organization needed to examine hair-cell structure and arrangement. Keeping this region intact, when possible, allows investigators to connect microscopic anatomy with the first stages of sound transduction rather than studying surrounding bone alone. Its condition therefore affects the value of preparations used to investigate normal auditory function and damage-related changes.
Exposed auditory nerve pathways provide an anatomical link between cochlear sensory structures and neural signaling. Examining this relationship helps researchers study how hair-cell activity connects with auditory pathways, adding neural context to observations of cochlear anatomy. In neuroscience, that connection is important for interpreting sound processing, studying injury, and relating peripheral sensory changes to hearing-related outcomes.
The core workflow involves removing surrounding temporal-bone tissue carefully enough to expose the cochlear turns and internal compartments. Researchers then examine structures such as the organ of Corti, hair-cell organization, and auditory nerve pathways while preserving delicate sensory regions when possible. The quality of this exposure determines how effectively the preparation supports later anatomical, physiological, or developmental investigation.
The isolated anatomy can provide a foundation for histology, which examines tissue structure, and for electrophysiology, which investigates electrical activity. It also supports developmental studies that track auditory organization across stages. Because the preparation preserves relationships among sensory structures and neural pathways, researchers can select the method that best addresses anatomy, function, or maturation.
Researchers can use the preparation to examine structural effects of injury or disease across hair cells, the organ of Corti, cochlear compartments, and auditory nerve pathways. These observations help connect anatomical damage with disrupted sound transduction and neural signaling. The same context supports investigations of hearing loss and the development of potential restorative therapies.