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The thin, jelly-like membrane projecting from the vestibular lip of the osseous spiral lamina and overlying the spiral organ of Corti of the ear.
See also: membrane
tectorial membraneA structure in the organ of Corti in the cochlea overlying the bristles of the acoustic hair cells on the basilar membrane. As particular cells vibrate under the influence of sound waves the bristles wipe against the tectorial membrane thus activating those hair cells to send nerve impulses to the brain.
tectorial membranea membrane, present in the COCHLEA of the inner ear, that runs parallel with the BASILAR MEMBRANE. Between the tectorial and basilar membranes, sensory cells span the gap and these cells are connected with nerve fibres which join the auditory nerve. The tectorial membrane forms part of the organ of Corti.
pertaining to tectorium; of the nature of a roof or covering.
a gelatinous, fibrous, tongue-like structure resting on the tactile hairs in the spiral organ of the inner ear.