tympanic membrane


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Related to tympanic membrane: Tympanic membrane perforation

tympanic membrane

the thin translucent oval membrane separating the external ear from the middle ear. It transmits vibrations produced by sound waves, via the ossicles, to the cochlea

Tympanic Membrane

 

eardrum, a thin layer of connective tissue and epithelium covering the opening of the tympanic cavity in the ear of terrestrial vertebrates and man. The tympanic membrane is absent in caudate and legless amphibians and burrowing snakes. Sound waves on striking the membrane cause it to vibrate. The vibrations are then transmitted to the inner ear mostly by the auditory ossicles. The membrane is divided into three concentric zones in mammals and man because of the uneven action of forces on some of its parts: medial (which moves without becoming deformed), intermediate (the most delicate and strongly vibrated), and lateral (hinged, movable).

G. N. SIMKIN

tympanic membrane

[tim′pan·ik ′mem‚brān]
(anatomy)
The membrane separating the external from the middle ear. Also known as eardrum; tympanum.
References in periodicals archive ?
Wullstein and Zoellner popularised myringoplasty technique in 1951 for tympanic membrane perforations.
Myringoplasty is performed for a perforated ear-drum which could be due to chronic otitis media or trauma to the tympanic membrane which had not healed in three months.
6 End aural approach gives better exposure of posterior part while post aural approach gives better exposure of anterior part of the tympanic membrane.
In the tympanic membrane study from a mechanical point of view, the first objective was to create a geometrical model.
Among middle ear damage most common pathology was tympanic membrane perforation in our study and accounted for 61.
When a patient is lying with his or her ear on the pillow, the difference between left and right tympanic membrane temperatures, although clinically significant, was found to be statistically significant only when the patient was lying on his or her right side.
The size of the lumen of the VT and the length of the tube are the two main factors that increase the length of 'stay' of a VT in the tympanic membrane.
If it says there is no fluid, you're home free," but if there's a possibility of fluid, you have to get a good look at the tympanic membrane for proper assessment.
8,10) In otolaryngology, Erkilet et al reported in 2009 that autologous platelet-rich plasma effectively accelerated tympanic membrane perforation healing in rats.
In this technique the graft is placed medial to the entire tympanic membrane remnant and is also more suitable for posterior perforation.
There were five cases (5 ears) of tympanic membrane retraction and one case of otitis media recurrence.
It is defined as simple surgical repair of tympanic membrane perforation without doing ossicular reconstruction.