Spiral ligament

Fibrous cushion located in the inner ear in humans

Spiral ligament
Floor of ductus cochlearis.
Details
Identifiers
Latin	ligamentum spirale ductus cochlearis
MeSH	D055493
TA98	A15.3.03.099
TA2	7030
FMA	77834
Anatomical terminology [edit on Wikidata]

The spiral ligament is a fibrous cushion located between the stria vascularis and the bony otic capsule.^[1]

The periosteum, forming the outer wall of the cochlear duct (Latin: ductus cochlearis), is greatly thickened and altered in character.

Additional images

This article incorporates text in the public domain from page 1054 of the 20th edition of Gray's Anatomy (1918)

^ Haschek, Wanda M.; Rousseaux, Colin G.; Wallig, Matthew A. (2013). Haschek and Rousseaux's handbook of toxicologic pathology. Amsterdam: Academic Press. ISBN 978-0-12-415765-1. OCLC 849352060.

Anatomy of hearing and balance

Outer ear

Tympanic cavity	Medial structures oval window round window secondary tympanic membrane prominence of facial canal promontory of tympanic cavity Posterior structures mastoid cells aditus to mastoid antrum pyramidal eminence
Ossicles	Malleus superior ligament lateral ligament anterior ligament Incus superior ligament posterior ligament Stapes annular ligament Muscles stapedius tensor tympani
Auditory tube / Eustachian tube	Torus tubarius

Labyrinths

General	Cochlea Vestibular duct Helicotrema Tympanic duct Modiolus Cochlear cupula Perilymphatic space Perilymph Cochlear aqueduct Cells Claudius Boettcher
Cochlear duct / scala media	Reissner's/vestibular membrane Basilar membrane Reticular membrane Endolymph Stria vascularis Spiral ligament Organ of Corti stereocilia tip links Tectorial membrane Sulcus spiralis externus internus Spiral limbus

Vestibule	Utricle macula Saccule macula Kinocilium Otolith Otolithic membrane Vestibular aqueduct endolymphatic duct endolymphatic sac Ductus reuniens
Semicircular canals	Superior Posterior Horizontal Ampullary cupula Ampullae crista ampullaris