Cochlear aqueduct

Cochlear aqueduct
Bone: Aqueduct of cochlea
Gray141.png
Left temporal bone. Inferior surface. (Aquæductus cochleæ labeled at left, fifth from the top.)
Latin a. cochleae
Gray's subject #34 144

Medial to the opening for the carotid canal and close to its posterior border, in front of the jugular fossa, is a triangular depression; at the apex of this is a small opening, the aquaeductus cochleae (or cochlear aqueduct, or aqueduct of cochlea), which lodges a tubular prolongation of the dura mater establishing a communication between the perilymphatic space and the subarachnoid space, and transmits a vein from the cochlea to join the internal jugular

Additional images

  • Base of skull. Inferior surface.

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

v · d · eBones of head and neck: the neurocranium of the skull (TA A02.1.01–07, GA 2.129–155)
Occipital
Other
Parietal
Frontal
Ethmoidal notch · Fossa for lacrimal gland · Trochlear fovea · Frontal sinus · Frontonasal duct
Temporal

Carotid canal · Facial canal (Hiatus) · Internal auditory meatus · Cochlear aqueduct · Stylomastoid foramen

fossae (Subarcuate fossa, Jugular fossa) · canaliculi (Inferior tympanic, Mastoid) · Styloid process · Petrosquamous suture

(note: ossicles in petrous part, but not part of temporal bone)
Sphenoid
Surfaces
fossae (Pterygoid, Scaphoid) · pterygoid plates (Lateral, Medial) · Pterygoid canal · Hamulus
Other
Ethmoid
Plates
Surfaces
Ethmoid sinus · ethmoidal foramina (Posterior, Anterior)

M: BON/CAR

anat(c/f/k/f, u, t/p, l)/phys/devp/cell

noco/cong/tumr, sysi/epon, injr

proc, drug(M5)
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
Perilymph • Cochlear aqueduct

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)

Wikimedia Foundation. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • cochlear aqueduct — aqueductus cochleae …   Medical dictionary

  • 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 duct — Diagrammatic longitudinal section of the cochlea. (visible at far right under latin name ductus cochlearis) Latin ductus cochlearis Gray s …   Wikipedia

  • 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

  • vein of cochlear aqueduct — vein of cochlear canaliculus vena aqueductus cochleae …   Medical dictionary

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

  • Aqueduct of cochlea — Infobox Bone Name = Aqueduct of cochlea Latin = a. cochleae GraySubject = 34 GrayPage = 144 Caption = Left temporal bone. Inferior surface. (Aquæductus cochleæ labeled at left, fifth from the top.) Caption2 = System = Precursor = MeshName =… …   Wikipedia

  • aqueduct — A conduit or canal. SYN: aqueductus. [L. aquaeductus] cerebral a. an ependyma lined canal in the mesencephalon about 20 mm long, connecting the third to the fourth ventricle. SYN: aqueductus mesencephali [TA], aqueductus cerebri, a. of cerebrum,… …   Medical dictionary

  • ear, human — ▪ anatomy Introduction       organ of hearing and equilibrium that detects and analyzes noises by transduction (or the conversion of sound waves into electrochemical impulses) and maintains the sense of balance (equilibrium).  The human ear, like …   Universalium

  • Vein — A blood vessel that carries blood low in oxygen content from the body back to the heart. The deoxygenated form of hemoglobin (deoxyhemoglobin) in venous blood makes it appear dark. Veins are part of the afferent wing of the circulatory system… …   Medical dictionary

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”