Viscoelastic properties of the human tympanic membrane studied with stroboscopic holography and finite element modeling.

ABSTRACT: A new anatomically-accurate Finite Element (FE) model of the tympanic membrane (TM) and malleus was combined with measurements of the sound-induced motion of the TM surface and the bony manubrium, in an isolated TM-malleus preparation. Using the results, we were able to address two issues related to how sound is coupled to the ossicular chain: (i) Estimate the viscous damping within the tympanic membrane itself, the presence of which may help smooth the broadband response of a potentially highly resonant TM, and (ii) Investigate the function of a peculiar feature of human middle-ear anatomy, the thin mucosal epithelial fold that couples the mid part of the human manubrium to the TM. Sound induced motions of the surface of ex vivo human eardrums and mallei were measured with stroboscopic ho

SUBMITTER: De Greef D 

PROVIDER: S-EPMC8045555 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature