Endolymph

safaTerkawi

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2022-08-10

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Endolymph.

Is found within the membranous labyrinth.
Has a potassium concentration close to that of extracellular fluid.
Bathes the hair cells of the inner ear.
Is electrically negative with respect to perilymph.
Inertia is a factor in the stimulation of receptors in the semicircular canals during rota-tory acceleration.

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safaTerkawi

2022-08-10

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A. True Perilymph surrounds the membranous labyrinth.

B. False It is similar to that of intracellular fluid.

C. True It bathes cochlear and vestibular hair cells.

D. False It is positive, of the order of +80 mV.

E. True The inertia causes endolymph movements to lag those of the membranous laby-rinth and displace the hairs of the hair cells

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