What fluid is located in the inner chamber of the inner ear?

The inner ear contains different types of fluids that play crucial roles in the function of hearing and balance. The fluid located in the inner chamber of the inner ear is called endolymph.

Endolymph is found within the membranous labyrinth of the inner ear, which includes structures such as the cochlea, vestibule, and semicircular canals. This fluid is important for the proper functioning of the auditory system, as it fills the spaces within the inner ear where the hair cells reside. The movement of endolymph stimulates these hair cells, allowing them to convert sound vibrations into neural signals that the brain interprets as sound.

Furthermore, endolymph has a unique ionic composition that is critical for maintaining the electrical potential necessary for sensory transduction in the auditory and vestibular systems. This functional aspect of endolymph highlights its importance when discussing inner ear physiology.

In contrast, perilymph, which is found in the space surrounding the membranous labyrinth, serves a different function. Aqueous humor is a fluid found in the anterior segment of the eye, and lyophilized fluid refers to a freeze-dried substance, both of which are unrelated to the anatomy of the inner ear.