Cochlear duct

Cochlear duct
Cochlear duct
Gray928.png
Diagrammatic longitudinal section of the cochlea. (visible at far right under latin name ductus cochlearis)
Latin ductus cochlearis
Gray's subject #232 1054
MeSH Cochlear+Duct

The cochlear duct (or scala media) is an endolymph filled cavity inside the cochlea, located in between the scala tympani and the scala vestibuli, separated by the basilar membrane and Reissner's membrane (the vestibular membrane) respectively.

Scala media houses the organ of Corti.

Additional images

  • Transverse section of the cochlear duct of a fetal cat.

  • The membranous labyrinth.

  • Floor of ductus cochlearis.

  • Cross section of the cochlea.

External links

v · d · eSensory system: Auditory and Vestibular systems (TA A15.3, TH 3.11.09, GA 10.1029)
Outer ear

Pinna (Helix, Antihelix, Tragus, Antitragus, Incisura anterior auris, Earlobe) • Ear canal • Auricular muscles

Eardrum (Umbo, Pars flaccida)
Middle ear

Labyrinthine wall/medial: Oval window · Round window • Secondary tympanic membrane • Prominence of facial canal • Promontory of tympanic cavity

Membranous wall/lateral

Mastoid wall/posterior: Mastoid cells • Aditus to mastoid antrum • Pyramidal eminence

Carotid wall/anterior

Tegmental wall/roof: Epitympanic recess

Jugular wall/floor
Stapedius · Tensor tympani
Bony part of pharyngotympanic tube · Cartilage of pharyngotympanic tube (Torus tubarius)
Inner ear/
(membranous labyrinth,
bony labyrinth)
General cochlea
Perilymphatic space
Cochlear duct /
scala media

Reissner's/vestibular membrane • Basilar membrane

Endolymph • Stria vascularis • Spiral ligament

Organ of Corti: Stereocilia • Tectorial membrane • Sulcus spiralis (externus, internus) • Spiral limbus
Cells

M: EAR

anat(e/p)/phys/devp

noco/cong, epon

proc, drug(S2)

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Look at other dictionaries:

  • cochlear duct — n SCALA MEDIA * * * see cochlea * * * ductus cochlearis …   Medical dictionary

  • cochlear duct — Anat. a spiral tube enclosed in the bony canal of the cochlea. * * * …   Universalium

  • cochlear duct — scala media; see cochlea …   The new mediacal dictionary

  • cochlear duct — Anat. a spiral tube enclosed in the bony canal of the cochlea …   Useful english dictionary

  • cupular caecum of cochlear duct — caecum cupulare ductus cochlearis [TA] the closed blind apical end of the cochlear duct …   Medical dictionary

  • vestibular caecum of cochlear duct — caecum vestibulare ductus cochlearis [TA] a small blind outpouching at the vestibular end of the cochlear duct …   Medical dictionary

  • Cochlear cupula — The cochlea and vestibule, viewed from above. (Cupula labeled at upper left.) Latin cupula cochleae The cochlear cupula is a structure in the cochlea. It is the apex of the cochlea …   Wikipedia

  • Cochlear — Cochlear, the adjective form of cochlea, may refer to: Cochlear implant, a sensory aid for the deaf Cochlear nuclei, the ventral cochlear nucleus and the dorsal (or lateral) cochlear nucleus Vestibular cochlear or Vestibulocochlear nerve, the… …   Wikipedia

  • Cochlear nerve — Nerve: Cochlear nerve Diagrammatic longitudinal section of the cochlea. (Cochlear nerve is in center, shown as striped.) …   Wikipedia

  • Cochlear aqueduct — Bone: Aqueduct of cochlea Left temporal bone. Inferior surface. (Aquæductus cochleæ labeled at left, fifth from the top.) Latin a. cochleae Gray s …   Wikipedia

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