(1) Their use is indicated in large or total defects to restore the natural anatomical conical shape of the eardrum, particularly in congenital atresia.
(2) Primitively, vibrations reached the stapes mainly via the anterior hyoid cornu, but in dicynodonts, therocephalians, and cynodants vibrations passed mainly or exclusively from mandible to quadrate to stapes and the reflected lamina was a component of the eardrum.
(3) An attempt was made to answer the question whether it is justified to set an age limit for performance of eardrum reconstructions in children.
(4) A possible relationship of primary auditory and primary nonauditory blast injury was discussed, and it has been concluded that more severe rupture of the eardrum in the injured by mine explosion can suggest the presence of primary blast injuries.
(5) His back was also injured, and both his eardrums burst, he said.
(6) The nature of the acoustic coupling limits the passive energy absorption and transmission properties of the eardrum.
(7) The hierarchy illuminates some of the limitations of various simplified elements commonly used to model the middle ear and demonstrates the necessity of treating the acoustics and the eardrum as an integrated subsystem.
(8) Large variations of sound pressure along the ear canal and over the surface of the eardrum are found above about 10 kHz.
(9) The acoustical energy reflectance at the eardrum, as calculated from a model of the ear canal when terminated by the middle ear model, agrees reasonably well with experimental data up to about 12 kHz.
(10) The tubal compliance index (TCI), which is the ratio of the tubal resistance between two different air flow rates, was compared among three groups: 36 ears of children with otitis media with effusion (OME), 26 ears of adult OME patients, and 10 otherwise normal ears with traumatic perforations of the eardrum.
(11) A major part of this alteration is due to the interaction of various mechanical and acoustic resonances which are characteristic of the hearing-aid receiver and the sound transmission system linking the receiver with the eardrum.
(12) I hope I don't sound too much of fuddy-fuddy -- actually, I know I do -- but surely the point of an athletics meet is to watch athletics and see people run and throw things -- and not to have your eardrums assaulted by a booming bass beat?
(13) The present study also included gross and histopathological examinations of the eardrum and observation of fibers of the lamina propria of the transplanted tympanic membrane by means of polarizing microscopy and of vascularization by intravascular India ink injection.
(14) In cases of retraction of the eardrum, the otoemissions were present in 2 of 23 ears.
(15) However, based on calculations of anticipated leakage of H2S for a variety of eustachian tube conditions and in the absence of either medical literature or personal reports documenting H2S poisoning due to eardrum perforation, the recommendation for excluding workers with such a condition from working in or around H2S is not supported.
(16) The auditory sensitivity of the rats with cotton-stuffed ears and the pierced eardrums decreased about 10 and 20 dB, respectively.
(17) Twenty-five eardrums of 15 healthy children without past or present history of otological disease were examined using otoscopy; a photograph of each eardrum was obtained.
(18) Perforated eardrums were found in 13.9% of Aboriginal and in 0.3% of European children's ears, and this abnormality was strongly associated with low weight and height status.
(19) Revised acoustic energy reflection coefficients, at the eardrum, are obtained for 20 ears for frequencies between 3 and 13 kHz.
(20) Three children whose eardrums appeared normal upon previous examinations, one with the otomicroscope, apparently developed tympanic membrane cholesteatomas that penetrated the fibrous layer of the pars tensa.
Tympanic
Definition:
(a.) Like a tympanum or drum; acting like a drumhead; as, a tympanic membrane.
(a.) Of or pertaining to the tympanum.
(n.) The tympanic bone.
Example Sentences:
(1) Subsequently, the inflammatory reaction diminishes, as can be seen on smears from tympanic effusions.
(2) Deep body temperature was recorded from the tympanic membrane, oral cavity, esophagus, and rectum.
(3) Microotoscopy showed a blue pulsating mass behind the tympanic membrane.
(4) Both tympanic and nontympanic pathways of sound reception are utilized by anuran amphibians.
(5) A clinico-pathological study of 10 cases (including histopathology) indicates that occult cholesteatoma is neither a congenital cholesteatoma nor an epidermoid cyst, originating in the attic through a melaplastic process of middle ear mucosa behind an intact tympanic membrane.
(6) An artist's rendition of the entire normal gerbil tympanic membrane is presented.
(7) The core temperature is taken from the rectum, the nasopharynx or tympanic membrane, and the peripheral temperature from the great toe.
(8) (2) Tympanometrically measured middle ear pressure (MEP) was almost equivalent to the actual MEP recorded by a manometer when the tympanic membrane was normal.
(9) These complications are of much higher frequency than after tympanoplasty with autograft, and indications for tympano-ossicular homografts are now limited to total tympanic destruction with absence of handle of malleus.
(10) Definitive degeneration and atrophic type changes were seen in all the parotid fragments removed six months after selective neurectomy of the tympanic plexus.
(11) During juvenile and adult life stages, the process becomes somewhat removed from the fenestra for obvious reasons, but at a gape of about 40 to 50 degrees it inevitably must touch the "inferior tympanic membrane" and possibly also the tympanic ring.
(12) On the other hand, the ciliary activity of the middle ear lining displays a varying pattern of reaction according to the locations within the tympanic cavity.
(13) Tympanometric findings could more often correctly suggest reduced tympanic membrane mobility than did otomicroscopy, but both methods gave an equally good indication of middle ear effusion.
(14) Ventilatory conditions, or the existence of soft tissue density, were evaluated by HRCT at such locations as the supratubal recess, mesotympanum, anterior and posterior parts of the tympanic isthmus, epitympanum, and mastoid antrum.
(15) Also the tympanic nerve and its course on the promontorium have been estimated.
(16) In this second report a sizable proportion of the men reported a history of otitis or otorrhea but had normal tympanic membranes.
(17) Above 5 kHz discrete resonances are observed, and the response varies strongly with position on the tympanic membrane.
(18) One problem remains: permanent aeration of the new tympanic cavity.
(19) Significant improvements in measurements of ear function also allow us to be more precise in the diagnoses of otosclerosis, perforation of the tympanic membrane, ossicular discontinuity, facial nerve dysfunction, and brain stem disorders.
(20) 1) When pressure was applied to the tympanic cavity, the curvature of the TM became small under negative pressure and large under positive pressure, with the displacement being greater under positive pressure.