Final answer:
The inner ear is filled with perilymph and endolymph fluids. These fluids transmit sound waves and stimulate hair cells for auditory processing.
Step-by-step explanation:
The inner ear is filled with fluid called perilymph and endolymph. Perilymph is a clear fluid that surrounds the cochlea, while endolymph is a fluid within the cochlea.
These fluids play a crucial role in transmitting sound waves and stimulating the hair cells in the organ of Corti, which then send signals to the brain for auditory processing.