The vestibule is the central part of bony labyrinth, and the utricle and saccule lie within it:
- The saccule lies in the spherical recess, located in the medial wall of the vestibule.
- The utricle lies behind and above it (posterosuperior) (in the elliptical recess of the medial wall of the vestibule).
Figure 1. Anterior views of right semi-circular canals (left) and the bony labyrinth (right):
Redrawn from: Shibano S. The Vestibular System and the “Spins”: A Proposal. Retrieved from http://greymattersjournal.com/the-vestibular-system-and-the-spins-a-proposal/ and
Viswanatha B. Labyrinthectomy. Retrieved from https://emedicine.medscape.com/article/2051423-overview
Figure 2. Vestibule of right ear, viewed from behind:
Figure 3. Vestibule of right ear, viewed from behind, showing the structures of the inner ear superimposed:
