What structure runs the length of the cochlea and is surrounded by the Scala Vestibuli and Scala Tympani?

The structure that runs the length of the cochlea and is surrounded by the Scala Vestibuli and Scala Tympani is the Scala Media. The Scala Media, also known as the cochlear duct, is an essential component of the inner ear and plays a crucial role in the auditory system. It contains the endolymph, a fluid crucial for the function of the hair cells within the Organ of Corti, which is located on the basilar membrane of the Scala Media.

Understanding the anatomy of the cochlea is vital for hearing professionals because it helps in diagnosing and treating various auditory disorders. The Scala Vestibuli and Scala Tympani are filled with perilymph and are located outside the Scala Media, creating a structure where sound vibrations can be transduced into neural signals. Each of these parts plays a significant role in how sound waves travel and are processed by the inner ear.