What are the three chambers within the inner ear called?

The three chambers within the inner ear refer specifically to the components of the cochlea, which is a spiral-shaped structure. The correct terms for these chambers are the scala vestibuli, scala media, and scala tympani.

The scala vestibuli is the upper chamber, which is filled with perilymph and connects to the oval window. The scala media, also known as the cochlear duct, contains endolymph and houses the organ of Corti, where sound transduction occurs. The scala tympani is the lower chamber that also contains perilymph and ends at the round window. Together, these chambers play a crucial role in the process of hearing by transmitting sound vibrations and facilitating the movement of fluid that stimulates sensory cells.

Other options do not accurately describe the specific chambers within the inner ear. For example, the bony cochlea and membranous labyrinth are more descriptive structures or regions rather than the distinct chambers themselves. Similarly, the outer ear, middle ear, and inner ear describe entire sections of the auditory system rather than the specific compartments of the cochlea. Lastly, terms like the organ of Corti and retrocochlear refer to specific structures or concepts related to hearing, rather than the chambers themselves.