Within the inner ear cochlear duct, the electrical potential difference between the scala media (containing endolymph) and the scala vestibuli (containing perilymph) is __________. Assume that the scala vestibuli is the reference.

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Physiology Test Question

Within the inner ear cochlear duct, the electrical potential difference between the scala media (containing endolymph) and the scala vestibuli (containing perilymph) is __________. Assume that the scala vestibuli is the reference.

	(A) 0 mV (i.e., no electrical potential difference between the scala vestibuli and scala media)
	(B) +45 mV
	(C) −45 mV
	(D) +85 mV
	(E) −85 mV

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Posted: Wednesday, November 11, 2015
Last updated: Wednesday, November 11, 2015