The Role Of The Perilymph In Semicircular Canal Stimulation

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Abstract
The assumption of a mechanical function of the perilymph in vestibular reactions has been reiterated in the literature (Anliker, M. & v. Buskirk, W. 1971. The role of the perilymph in response of the semicircular canals to angular acceleration. Acta Otolaryng (Stockh.) 72, 93). This assumption is essentially based on three premises: that the perilymph should meet a lower resistance than the endolymph because of the larger perilymphatic space, that the ampulla blocks perilymph movement by presenting one wall perpendicularly placed at the end of the perilymphatic canal and that this ampullary wall and the perilymphatic meshwork of loose connective tissue offer no resistance to perilymph movement. This paper presents criticisms of each of these premises and maintains that the assumption of a mechanical function for the perilymph cannot be supported or sustained by reference to them.

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