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(A) The correct answer is $A$. In the inner ear,the bony labyrinth consists of channels that contain a fluid called perilymph. Inside the bony labyrin

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The bony canals are embedded in the perilymph of the membranous canals.

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(A) The correct answer is $A$. In the inner ear,the bony labyrinth consists of channels that contain a fluid called perilymph. Inside the bony labyrinth lies the membranous labyrinth,which is filled with endolymph. Therefore,the statement that 'bony canals are embedded in the perilymph of the membranous canals' is incorrect; rather,the membranous canals are suspended in the perilymph of the bony canals. Each of the three semicircular canals is arranged at right angles to each other in different planes. The base of each canal is swollen,known as the ampulla. Inside the ampulla,there is a projecting ridge called the crista ampullaris,which contains sensory hair cells responsible for maintaining dynamic equilibrium.

Select the incorrect option regarding the semicircular canals.

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