Sökning: "human cochlea"

Visar resultat 1 - 5 av 19 avhandlingar innehållade orden human cochlea.

  1. 1. Influence of middle ear pressure changes on labyrinthine hydrodynamics and hearing physiology

    Författare :Konrad Konradsson; Lund näs- och halssjukdomar Öron-; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; auditive system and speech; audiology; Pressure; Audiometry; Cats; Animal; Cochlea; Cochlear aqueduct; Ear; Eustachian tube; Hearing; Otorinolaryngologi; Human; Labyrinth; Otorhinolaryngology; Meniere s disease; audiologi; hörsel- och talorganen;

    Sammanfattning : Results from experimental studies, as well as clinical studies, are used to elucidate the effects of ambient pressure changes on cochlear hydrodynamics and function. The perilymph pressure changes and the pressure release effects of the cochlear aqueduct (CA) and Eustachian tube (ET) in cats exposed to hypobaric pressure are elucidated. LÄS MER

  3. 2. The Human Cochlea and Cochlear Implantation : Morphological Characteristics and Clinical Correlations

    Författare :Nadine Schart-Morén; Helge Rask-Andersen; Elina Mäki-Torkko; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; cochlear implantation; micro-CT; synchrotron; facial nerve stimulation; hearing preservation; round window;

    Sammanfattning : The most common sensory deficit in the world is sensorineural hearing loss. Cochlear implantation (CI) can majorly contribute to restore hearing, not only in patients with severe to profound hearing loss, but also in hearing-impaired patients with residual low-frequency hearing. LÄS MER

  4. 3. The Human Spiral Ganglion

    Författare :Sven Tylstedt; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Otorhinolaryngology; human spiral ganglion; ultrastructural morphology; neural interaction; synaptophysin; connexin; membrane specializations; synapse; gap junction; tight junction; Otorhinolaryngologi; Otorhinolaryngology; Otorhinolaryngologi; Oto-Rhino-Laryngology; oto-rhino-laryngologi;

    Sammanfattning : Our knowledge of the fine structure of the Human Spiral Ganglion (HSG) is still inadequate and new treatment techniques for deafness using electric stimulation, call for further information and studies on the neuronal elements of the human cochlea. This thesis presents results of analyses of human cochlear tissue and specimens obtained during neurosurgical transpetrosal removal of life-threatening meningeomas. LÄS MER

  5. 4. Hearing Preservation CI Surgery and Hybrid Hearing : From Anatomical Aspects to Patient Satisfaction

    Författare :Elsa Erixon; Helge Rask-Andersen; Claes Möller; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; anatomic variations; human cochlea; cochlear implantation; EAS; electro-acoustic stimulation; residual hearing; partial deafness; IOI-HA; EQ-5D; Oto-Rhino-Laryngology; Oto-rhino-laryngologi;

    Sammanfattning : A common cause of profound deafness is hair cell dysfunction in the cochlea. Cochlear implants (CI) bypass the hair cells via an electrode and stimulate the cochlear nerve directly. LÄS MER

  7. 5. The Human Vestibular Aqueduct, Endolymphatic Duct and Sac : A Morphological Study Using Micro-CT, Super Resolution Immunohistochemistry and Synchrotron Phase Contrast Imaging

    Författare :Charlotta Kämpfe Nordström; Helge Rask-Andersen; Göran Laurell; Claes Möller; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Endolymphatic sac; endolymphatic duct; vestibular aqueduct; Meniere s disease; LVAS; micro-CT; synchrotron phase contrast imaging; Medicinsk vetenskap; Medical Science;

    Sammanfattning : The inner ear lies sheltered in the temporal bone and consists of basically three parts: the cochlea (the hearing organ), the vestibular (the balance organ), and the endolymphatic duct (ED) and endolymphatic sac (ES). The ES and ED are located in a bony canal, the vestibular aqueduct (VA), located on the medial side of the vestibule. LÄS MER