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Inner ear
- The inner ear contains the semicircular canals, cochlea, and distal end of the eighth cranial nerve.
- The semicircular canals contain fluid and hair cells connected to sensory nerve fibers of the vestibular portion of the eighth cranial nerve.
- The inner ear maintains sense of balance or equilibrium.
- The cochlea is the spiral-shaped organ of hearing.
- The organ of Corti (within the cochlea) is the receptor and organ of hearing.
- Eighth cranial nerve
- The cochlear branch of the nerve transmits neuroimpulses from the cochlea to the brain, where they are interpreted as sound.
- The vestibular branch maintains balance and equilibrium.