Cochlear fluid, also known as endolymph and perilymph, is a specialized fluid found within the cochlea of the inner ear. It plays a crucial role in transmitting sound vibrations and maintaining the proper functioning of the auditory system. The endolymph is located within the membranous labyrinth of the cochlea and is involved in the stimulation of sensory hair cells, which convert sound vibrations into electrical signals that can be interpreted by the brain. Perilymph, on the other hand, surrounds the membranous labyrinth and helps to protect and support the delicate structures of the inner ear.