Scala tympani
Scala tympani
Definition
The osseous spiral lamina reaches about half-way toward the outer wall of the tube, and partially divides its cavity into two passages or scalæ, of which the upper is named the scala vestibuli, while the lower is termed the scala tympani.
References
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).
