Effect of cupula shrinkage on the semicircular canal activity

Autor:	Shigetaka Shimizu, Ujimoto Konomi, Youichi Iimura, Taro Inagaki, Koji Otsuka, Mamoru Suzuki
Rok vydání:	2010
Předmět:	Rana catesbeiana genetic structures Semicircular canal Endolymph business.industry Caloric response General Medicine Anatomy Stimulus (physiology) Nerve potential Semicircular Canals Crista medicine.anatomical_structure Otorhinolaryngology Bullfrog medicine Animals sense organs business Evoked Potentials
Zdroj:	Acta Oto-Laryngologica. 130:1092-1096
ISSN:	1651-2251 0001-6489
DOI:	10.3109/00016481003677456
Popis:	Conclusion: With half-sized cupula, the semicircular canal nerve potentials decreased under slow stimulus, thus potentially leading to reduced caloric response. This also suggests that shrunken cupula may cause dizziness because of its hypermobility. Objectives: To examine the physiological effect of half-sized cupula on the semicircular canal nerve potential. Methods: The isolated cupula of the bullfrog was sectioned in half with fine scissors and was replaced on the crista. Mechanical endolymphatic flow and slow and fast stimuli were delivered and the evoked action potentials were recorded. Results: The cupula was successfully sectioned in half and was replaced on the crista. With the half-sized cupula, the action potentials became smaller under slow stimulus than under fast stimulus.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6dbc06fb7e7207e221447a89fb17d692 https://doi.org/10.3109/00016481003677456 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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