The membranous labyrinth occupies the central portion of the vestibule and the passages leading from it.
"A Practical Physiology" by Albert F. Blaisdell
Describe the membranous labyrinth.
"A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition)" by Calvin Cutter
A singular addition to the mechanism of hearing is observed within this membranous bag of the labyrinth.
"A Treatise on Physiology and Hygiene" by Joseph Chrisman Hutchison
The internal ear or labyrinth consists of a bony and a membranous part, the latter of which is contained in the former.
"Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 9" by Various