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Vocal fold paresis describes the weakness of the PCA and an impairment to its functioning. [22] Unilateral vocal fold paresis is the term used when there is damage to the RLN on one side of the body. [7] In unilateral vocal fold paresis, there is a lack of nerve supply to one side of the vocal fold's PCA muscle.
Voice disorders [1] are medical conditions involving abnormal pitch, loudness or quality of the sound produced by the larynx and thereby affecting speech production. These include:
Botulinum toxin (Botox) is often used to improve some symptoms of spasmodic dysphonia through weakening or paralyzing the vocal folds, thus preventing muscle spasms. [ 1 ] [ 32 ] The level of evidence for its use is currently limited; little is known about optimal dosage, frequency of injections, or exact location of injection.
Voice disorders can be divided into two broad categories: organic and functional. [9] The distinction between these broad classes stems from their cause, whereby organic dysphonia results from some sort of physiological change in one of the subsystems of speech (for voice, usually respiration, laryngeal anatomy, and/or other parts of the vocal tract are affected).
Voice therapy consists of techniques and procedures that target vocal parameters, such as vocal fold closure, pitch, volume, and quality. This therapy is provided by speech-language pathologists and is primarily used to aid in the management of voice disorders, [1] or for altering the overall quality of voice, as in the case of transgender voice therapy.
Vocal cord dysfunction (VCD) is a condition affecting the vocal cords. [1] It is characterized by abnormal closure of the vocal folds, which can result in significant difficulties and distress during breathing, particularly during inhalation. [1] Due to the similarity in symptoms, VCD attacks are often mistaken for asthma attacks or laryngospasms.
Pages in category "Vocal fold disorders" ... Vocal cord paresis; Vocal cord nodule This page was last edited on 24 February 2012, at 17:19 (UTC). ...
Voiced speech is produced by air streaming from the lungs through the vocal cords, setting them into an oscillating movement. [6] [7] In every oscillation, the vocal folds are closed for a short period of time. When the folds reopen the pressure under the folds is released. These changes in pressure form the waves called (voiced) speech.