The scala tympani, also known as tympanic duct, is the inferiormost duct of the cochlea. It is filled with perilymph and communicates directly with the subarachnoid space.
It is separated from the scala media and scala vestibuli by the spiral lamina.
- 1. David H. McFarland, Frank Henry Netter. Netter's Atlas of Anatomy for Speech, Swallowing, and Hearing. ISBN: 9780323056564