Skip to product information
1 of 2

Paul Kim

Membranous labyrinth (Latin)

Membranous labyrinth (Latin)

The labyrinthus membranaceus is suspended within the perilymph of the labyrinthus osseus thus mirroring its overall structure. The central part of the labyrinthus membranaceus is located within the bony vestibulum. It consists of two sacs: utriculus and sacculus, which communicate via a small duct called the ductus reuniens. The utriculus lies in the posterior part of the vestibulum, while the sacculus lies anteriorly. The three membranous ductus semicirculares branch from the utriculus and pass through the canales semicirculares. Similar to their bony counterparts, the ducts originate with ampullae membranaceae (anterior, posterior, lateral). The ductus anterior and posterior unite as well, forming the crus membranaceum commune.The bony cochlea houses the membranous ductus cochlearis which follows its spiral course. The whole labyrinthus membranaceus is filled with endolymph. Movement of endolymph stimulates the receptor cells within the walls of the labyrinthus, producing neuronal stimuli related to balance and hearing. These stimuli are conveyed via the nervus vestibulocochlearis, whose components can be seen innervating different parts of the labyrinthus. Essentially, the nervus vestibularis innervates the utriculus, sacculus and ductus semicirculares, via its branches, conveying the information about balance. Branches of the nervus cochlearis innervate the organum spirale (Cortii) that is located in the cochlea, providing information about hearing.
  • Science

    License for academic purposes such as theses, research publishing and the scientific discourse

  • Education

    License for educational purposes, live teaching, presentations, handouts and exam papers

  • Commerce

    License for commercial purposes, editorial use, broadcast and video, website and social media

  • Please visit our License page to find out which license is best for you.
  • The extended usage unlocks additional ways to use our illustrations. Check the license terms for more info.

Regular price $7.56 USD
Regular price Sale price $7.56 USD
Sale Sold out
View full details
Content type
File size
197.19 KB
2 MP