vestibular aqueduct

The vestibular aqueduct is a small bony canal within the inner ear that connects to the cranial cavity. It houses the endolymphatic duct, which carries endolymph, a fluid unique to the inner ear with a high concentration of potassium ions. This duct plays a role in maintaining the balance of fluids within the inner ear. The vestibular system, which includes the vestibule and semicircular canals, is responsible for balance and is part of the inner ear's bony labyrinth. Diseases affecting the vestibulocochlear nerve, which transmits signals from the vestibular system to the brain, can cause symptoms like tinnitus, vertigo, and hearing loss.1234