Estimation of optimal insertion angle in a mammalian outer hair cell stereocilium
Cited 1 times inCited 1 times in
- Estimation of optimal insertion angle in a mammalian outer hair cell stereocilium
- Baek, Jong Dae; Yoon, Yong-Jin; Abedinnasab, Mohammad H.; Han, Beibei; Kwak, Sang Kyu
- Finite element model; Mechanical Deflection; Outer Hair Cell (OHC); Stereocilia; Tectorial Membrane (TM)
- Issue Date
- ELSEVIER SCI LTD
- JOURNAL OF BIOMECHANICS, v.45, no.10, pp.1823 - 1827
- Optimal insertion angle of mammalian stereocilia is estimated from the finite element analysis of the tip motion of outer hair cells (OHCs) stereocilia. The OHC stereocilia motion in the acousticolateral system appears to result in the mechanoelectrical transduction channels. Deflection of the hair bundle towards the tallest row of stereocilia causes increased probability of opening of ion channels. In this work, we focus on one of the physical features of the OHC stereocilium, the initial insertion angle of the tallest row into the tectorial membrane (TM), and its effects on the stereocilia's deflection motion. A three-dimensional model was built for the tallest stereocilium and the TM at the region where the best frequency was 500. Hz. The mechanical interactions between the embedded stereocilia and the TM have been implemented into the finite element simulation. We found that, the optimum insertion angle of the tallest stereocilium into the TM was 69.8°, where the stereocilium is maximally deflected. This quantity is consistent with the histological observation obtained from the literature.
- ; Go to Link
Appears in Collections:
- ECHE_Journal Papers
can give you direct access to the published full text of this article. (UNISTARs only)
Show full item record
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.