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Higher power view of osseous lamina and basilar membrane/organ of Corti in a preparation from an elderly individual in which there has been mild thinning of the myelinated nerve fibers within the osseous lamina. The spirally oriented nerve fibers in the osseous lamina are nicely displayed in this specimen.

A: Whole-mount preparation of osseous lamina (OSL) and basilar membrane at a level of focus that shows a vessel (horizontal arrow) emerging from the OSL and joining the spiral vessel (vertical arrows) under the basilar membrane. B: Scanning micrograph showing a similar situation in which a vessel (horizontal arrow) emerges from the OSL to join the spiral vessel (vertical arrows). As in the preceding micrograph (#32), the spiral vessel under the basilar membrane appears exposed to the

Osseous lamina with its nerve fibers in a specimen oriented in nearly horizontal plane.

Cochlear dissection after insertion of a cochlear implant electrode array (Advanced Bionics Thin Helix). The array has been colored blue to provide better contrast of the silicon carrier. The array lies in scala tympani and is situated beneath the translucent basilar membrane. The apical cochlear turn has been removed to provide an unobstructed view of the basal turn. From Wright, CG, Roland PS, Kuzma J. Advanced Bionics Thin Lateral and Helix II electrodes: a temporal bone study

A: Otic capsule bone drilled to a thin shell to reveal contours of the cochlea. The membranous labyrinth has been stained with osmium so that it appears dark through the thinned bone. An implant electrode array had been inserted into this specimen and a portion of the array can be seen at lower left. B: Similar preparation in which the bone overlying scala vestibuli has been removed to show the osmium-stained basilar membrane and osseous spiral lamina.

Researchers studied the effects of cholinesterase-inhibiting chemicals on the brain in a laboratory rodent model of Gulf War illness (2009-2010).

Phase III research on Gulf War illness by the Division of Epidemiology at UT Southwestern

Phase II research on Gulf War illness by the Division of Epidemiology at UT Southwestern

Learn who's currently enrolled in the LEAD Program at UT Southwestern Medical Center.

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