To better understand vertigo and dizziness, it is important one knows the anatomy of the inner ear inside the temporal bone..
The temporal bone contains the middle ear, including the ossicles; and the inner ear, which consists of the cochlea, vestibule, and semicircular canals; the bony canals for the facial and vestibulocochlear nerves; and the related vasculature and muscles.
The bony labyrinth contains the membranous labyrinth, a complex interconnected series of membranous sacs and ducts that are primarily responsible for balance and hearing.
Fluid within the bony labyrinth called the perilymph surrounds the membranous labyrinth, which contains its own unique fluid, called the endolymph.
The bony labyrinth consists of three structures: the cochlea, the vestibule, and the semicircular canals