The fluid mechanics of the semicircular canals

Author:

Van Buskirk W. C.,Watts R. G.,Liu Y. K.

Abstract

A mathematical model for the unsteady fluid-dynamic response of the semicircular canals is developed. The endolymph is assumed to be an incompressible Newtonian fluid and the presence and effects of both the utricle and the cupula are specifically accounted for. A first approximate solution is obtained using a singular perturbation method. It is shown that the canal can be modelled as a heavily damped, second-order system which behaves as an angular-velocity meter. A comparison of the model response with experimental results is made; fairly good agreement is found.

Publisher

Cambridge University Press (CUP)

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics

Reference15 articles.

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2. Igarashi, M. 1966 Dimensional study of the vestibular end of organ apparatus. In 2nd Symp. on Role of Vestibular Organs in Space Exploration . Washington, D.C.: U.S. Government Printing Office, N.A.S.A. SP-115.

3. Niven, J. I. & Hixson, W. C. 1961 Frequency response of the human semicircular canal. I. Steady-state ocular nystagmus response to high-level sinusoidal angular rotations.Rep. U.S. Naval School Aviation Med., Pensacola, Florida, no. NSAM-58 (N.A.S.A. Order no. R-1).

4. Breuer, J. 1874 Über die funktion der Bogengange des Ohrlabrinthes.Wien. Med. Jahrb. 4,72.

5. Crum Brown, A. 1874 On the sense of rotation and the anatomy and physiology of the semicircular canals of the inner ear.J. Anat. Physiol. 8,327.

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