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Human Oscicular Chain Articulations: Asymmetric Sound Transmission International Journal of Morphology
Ramirez Aristeguieta,Luis Miguel; Ballesteros Acuña,Luis Ernesto.
The mechanism for conducting acoustic energy via middle ear oscicles is still a controversial topic and will remain so until consensus is reached regarding whether it amplifies or reduces sound transmission. 22 paired human temporal bone blocks and 1 left block were studied. Digital measurements were taken of the tympanic membrane, oscicular articulations and the oval window; the results were then correlated. A relationship of non-lineal areas was found amongst the structures being studied, suggesting a sound transmission relationship combining both sound reduction and amplification. A complex relationship of levers could be observed originating in an oscicular and articular asymmetric relationship suggesting an amplifying function in initial sound...
Tipo: Journal article Palavras-chave: Malleus; Incus; Stapes; Tympanum; Incudomalleolar joint; Incudostapedial joint; Oval window; Stapedial muscle.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000400012
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