A) perilymph
B) endolymph
C) lymph
D) both and
Correct Answer: D
Solution :
The inner ear consists of a labyrinth of channels within a skull bone (the temporal bone). The part of the inner ear involved in hearing is cochlea. The cochlea has two large chambers, an upper vestibular canal and a lower tympanic canal, separated by a smaller cochlear duct. The vestibular and tympanic canals filled with perilymph while cochlear duct is filled with endolymph.
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