Final answer:
The bony labyrinth of the inner ear is lined with a series of fleshy tubes called the cochlea labyrinth. The cochlea is a coiled, fluid-filled tube that changes mechanical sound vibrations to nerve impulses that travel to the brain.
Step-by-step explanation:
The bony labyrinth of the inner ear is lined with a series of fleshy tubes called the cochlea labyrinth. The cochlea is a coiled, fluid-filled tube that changes mechanical sound vibrations to nerve impulses that travel to the brain. It contains sensory receptor cells (hair cells) that transduce sound into neural signals.