For the membrane situated within the vertebral canal, see Tectorial membrane of atlanto-axial joint.
Tectorial membrane (cochlea)
Section through the spiral organ of Corti. (Membrana tectoria labeled at center top.)
Section through the spiral organ of Corti. (Membrana tectoria labeled at center top.)
Details
Identifiers
Latin
membrana tectoria ductus cochlearis
MeSH
D013680
NeuroLex ID
birnlex_2531
TA98
A15.3.03.108
TA2
7034
FMA
75805
Anatomical terminology
[edit on Wikidata]
The tectoria membrane (TM) is one of two acellular membranes in the cochlea of the inner ear, the other being the basilar membrane (BM). "Tectorial" in anatomy means forming a cover. The TM is located above the spiral limbus and the spiral organ of Corti and extends along the longitudinal length of the cochlea parallel to the BM. Radially the TM is divided into three zones, the limbal, middle and marginal zones. Of these the limbal zone is the thinnest (transversally) and overlies the auditory teeth of Huschke with its inside edge attached to the spiral limbus. The marginal zone is the thickest (transversally) and is divided from the middle zone by Hensen's Stripe. It overlies the sensory inner hair cells and electrically-motile outer hair cells of the organ of Corti and during acoustic stimulation stimulates the inner hair cells through fluid coupling, and the outer hair cells via direct connection to their tallest stereocilia.
and 29 Related for: Tectorial membrane information
tectoria membrane (TM) is one of two acellular membranes in the cochlea of the inner ear, the other being the basilar membrane (BM). "Tectorial" in anatomy...
membrane, the tectorialmembrane and the hair cells are also moving, with the stereocilia bending with the relative motion of the tectorialmembrane. This can...
cochlear apex it is at its widest and least stiff (low-frequencies). The tectorialmembrane (TM) helps facilitate cochlear amplification by stimulating OHC (direct)...
basilar membrane and their stereocilia embedded in the tectorialmembrane. The movement of the basilar membrane compared to the tectorialmembrane causes...
hair cells are attached to a tectorialmembrane in birds, only the outer hair cells are attached to the tectorialmembrane in mammals. The name cochlea...
(Transverse ligament of atlas) Alar ligament Apical ligament of dens Tectorialmembrane of atlanto-axial joint Lateral: no ligaments anterior atlantoaxial...
roots of the accessory nerve (CN XI) Apical ligament of the dens Tectorialmembrane Spinal cord Dural veins (Dural venous sinuses) VAMPires Stalk At Twilight...
the Organ of Corti, which is situated between the basilar membrane and the tectorialmembrane within the cochlea (See Figure 3). The tunnel of corti, which...
lateral and medial ridges of the cochlear duct, which together with the tectorialmembrane make up the organ of Corti. Rosenthal's canal or the spiral canal...
Alpha-tectorin is a protein that in humans is encoded by the TECTA gene. The tectorialmembrane is an apical extracellular matrix (aECM) of the inner ear that contacts...
The obturator membrane is a thin fibrous sheet, which almost completely closes the obturator foramen. Its fibers are arranged in interlacing bundles mainly...
bone (between the attachments of the apical ligament of dens, and tectorialmembrane). A weaker and somewhat inconsistent median band (crus inferius) extends...
body include the: Peritoneal ligament: a fold of peritoneum or other membranes. Fetal remnant ligament: the remnants of a fetal tubular structure. Periodontal...
(Transverse ligament of atlas) Alar ligament Apical ligament of dens Tectorialmembrane of atlanto-axial joint Lateral: no ligaments anterior atlantoaxial...
(Transverse ligament of atlas) Alar ligament Apical ligament of dens Tectorialmembrane of atlanto-axial joint Lateral: no ligaments anterior atlantoaxial...
electromotility where they increase movement of the basilar and tectorialmembranes and therefore increase deflection of stereocilia in the IHCs. A crucial...
projecting towards the tectorialmembrane, which sits above the organ of Corti. Stereocilia respond to movement of the tectorialmembrane when a sound causes...
(Transverse ligament of atlas) Alar ligament Apical ligament of dens Tectorialmembrane of atlanto-axial joint Lateral: no ligaments anterior atlantoaxial...
oblongata and its membranes, the accessory nerves, the vertebral arteries, the anterior and posterior spinal arteries, and the tectorialmembrane and alar ligaments...
coccyx or upper sacral canal inferiorly. It is continuous with the tectorialmembrane of atlanto-axial joint superiorly, and with the deep dorsal sacrococcygeal...
mechano-electrical transduction. When the basilar membrane is driven upward, shear between the hair cells and the tectorialmembrane deflects hair bundles in the excitatory...
(Transverse ligament of atlas) Alar ligament Apical ligament of dens Tectorialmembrane of atlanto-axial joint Lateral: no ligaments anterior atlantoaxial...
(Transverse ligament of atlas) Alar ligament Apical ligament of dens Tectorialmembrane of atlanto-axial joint Lateral: no ligaments anterior atlantoaxial...
(Transverse ligament of atlas) Alar ligament Apical ligament of dens Tectorialmembrane of atlanto-axial joint Lateral: no ligaments anterior atlantoaxial...
(Transverse ligament of atlas) Alar ligament Apical ligament of dens Tectorialmembrane of atlanto-axial joint Lateral: no ligaments anterior atlantoaxial...
articulation is enclosed in a thin articular capsule, lined by synovial membrane and strengthened laterally and medially by ligamentous fibers (interchondral...
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