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Gas Permeability of Round Window Membrane
ORL, 2010The perilymphatic oxygen tension in the scala tympani was measured with a polarographic technique after various gases were insufflated into the middle ear cavity of 7 guinea pigs. Pure oxygen, insufflated into the middle ear cavity, easily permeated the round window membrane and elevated the perilymphatic oxygen tension.
H, Sasa +3 more
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Ultrastructural Studies of the Human Round Window Membrane
Archives of Otolaryngology - Head and Neck Surgery, 1989An ultrastructural study of 14 round window membranes of seven human ears disclosed three basic layers: an outer epithelium lining the middle ear, a middle core of connective tissue, and an inner epithelium bordering the inner ear. Morphological evidence suggests that these layers participate in absorption and secretion of substances to and from the ...
A M, Carpenter +2 more
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Experimentally Induced Round Window Membrane Lesions
Acta Oto-Laryngologica, 1977This investigation confirmed previous studies indicating that the middle and inner ear of the guinea pig have a pronounced tendency to healing. Middle ear hemorrhage of surgical origin appears to stop quickly in the guinea pig. A surgically created perforation of the round window with or without removal of perilymphatic fluid by suction resulted in a ...
A, Axelsson +3 more
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Rupture of the round window membrane
Indian Journal of Otolaryngology, 1981Two cases of traumatic rupture of the round window membrane causing leak of perilymph into the middle ear and resulting in symptoms of tinnitus, hearing loss and vertigo are described. While the vertigo responded well to the operative treatment, the hearing loss showed no improvement.
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Dimensions of and Vibrations in the round Window Membrane in Cats
Annals of Otology, Rhinology & Laryngology, 1989The shape and size of the round window membrane and its vibratory pattern were investigated in cats by use of an optical displacement meter and time-averaged holography. The round window membrane is convex toward the scala tympani and appears to be almost elliptic in shape. The major and minor axes of the membrane are 2,273 and 1,934 μm.
T, Fukaya, Y, Nomura
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Mathematical modeling for local trans-round window membrane drug transport in the inner ear [PDF]
Drug Delivery, 2016 The structure and composition of the round window membrane (RWM) make it a particularly effective pathway for drug delivery to the inner ear. Therefore, predicting the efficiency of RWM transport would provide useful information for enhancing local ...
Yue Zhang, Lu Wen, Gang Chen
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Ultrastructural Studies of the Round-Window Membrane of the Cat
Archives of Otolaryngology - Head and Neck Surgery, 1987An ultrastructural study of eight round-window membranes of four normal cats disclosed three basic layers: an outer epithelium (middle ear), a middle core of connective tissue, and an inner epithelium (inner ear). Morphologic evidence suggests that these layers participate in absorption and secretion of substances to and from the inner ear, such that ...
M V, Goycoolea +2 more
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Permeability of the Round Window Membrane in Otitis Media
Archives of Otolaryngology - Head and Neck Surgery, 1980A round window membrane permeability study of macromolecules in otitis media, using tritiated normal human serum albumin, was done in cats. Eustachian tube obstruction was used to induce otitis media in ten animals. Samples of perilymph in obstructed and normal control ears were studied after 25 minutes of exposure of the round window to tritiated ...
M V, Goycoolea +3 more
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1983
This membrane, also called the second tympanic membrane by Antonio Scarpa, separates the inner ear from the middle ear and is located in the bottom of the cochlea. The round window membrane is divided into three layers, epithelial, middle and inner layers, from the middle ear to the inner ear side.
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This membrane, also called the second tympanic membrane by Antonio Scarpa, separates the inner ear from the middle ear and is located in the bottom of the cochlea. The round window membrane is divided into three layers, epithelial, middle and inner layers, from the middle ear to the inner ear side.
openaire +1 more source