How do the semicircular canals and the semicircular ducts differ?
A) The semicircular canals are part of the membranous labyrinth, and the canals surround the semicircular ducts, which are part of the bony labyrinth.
B) The semicircular canals are part of the bony labyrinth, and they are surrounded by the semicircular ducts, which are part of the membranous labyrinth.
C) The semicircular canals are part of the membranous labyrinth, and they are surrounded by the semicircular ducts, which are part of the bony labyrinth.
D) The semicircular canals are part of the bony labyrinth, and the canals surround the semicircular ducts, which are part of the membranous labyrinth.
Answer: D
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