eardrum


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eardrum

 [ēr´drum]

tym·pan·ic mem·brane

[TA]
a thin tense membrane forming the greater part of the lateral wall of the tympanic cavity and separating it from the external acoustic meatus; it constitutes the boundary between the external and middle ears; it is a trilaminar membrane covered with skin on its external surface, mucosa in its internal surface, is covered on both surfaces with epithelium, and, in the tense part, has an intermediate layer of outer radial and inner circular collagen fibers.

eardrum

(îr′drŭm′)
n.
The thin, semitransparent, oval-shaped membrane that separates the middle ear from the external ear. Also called tympanic membrane, tympanum.

eardrum

eardrum

Tympanic membrane, see there.

tym·pan·ic mem·brane

(tim-pan'ik mem'brān) [TA]
A thin, tense covering that forms the greater part of the lateral wall of the tympanic cavity and separates it from the external acoustic meatus; it constitutes the boundary between the external and middle ear, is covered on both surfaces with epithelium, and in the tense part has an intermediate layer of outer radial and inner circular collagen fibers.
Synonym(s): membrana tympani [TA] , drum membrane, drum, drumhead, eardrum, myringa, myrinx.
[L. membrana tympani]

eardrum

The tympanic membrane that separates the inner end of the external auditory canal (the meatus) from the middle ear. The outer side of the drum is covered with thin skin and to the inner side is attached the malleus, first of the three tiny bones, the auditory ossicles.

eardrum

see TYMPANIC MEMBRANE.

Eardrum

A paper-thin covering stretching across the ear canal that separates the middle and outer ears.
Mentioned in: Hearing Aids

tym·pan·ic mem·brane

(tim-pan'ik mem'brān) [TA]
A thin tense membrane forming the greater part of the lateral wall of the tympanic cavity and separating it from the external acoustic meatus.
Synonym(s): eardrum.
[L. membrana tympani]

eardrum

see tympanic membrane.
References in periodicals archive ?
It is common for some fluid (mucus) to remain behind the eardrum after the infection clears.
There is not much data about this kind of foreign bodies in the external ear canal and eardrum, and the most common cases have not been reported in European countries [1-8].
The Chairman Deafness Foundation of Pakistan also warned against the role of quacks in causing deafness, adding that people should avoid ear treatment from untrained persons because they usually rupture the eardrum due to lack of knowledge about the anatomy of the ear.
Copiphora gorgonensis katydids (one shown) don't need bones for translating because the eardrum does the job.
The middle ear plays an essential role in determining how well we hear - sound waves hit the eardrum which in turn cause vibrations on to the tiny bones in the middle ear.
Problem is, the studies cited by the AAP as evidence for this recommendation were nearly all seriously flawed, because they excluded children with the very criteria that signal a true AOM diagnosis: a full or bulging eardrum .
It's far simpler to simply take a quick look and say that the diagnosis is "'uncertain," or to say that the eardrum is "red" in order to justify a diagnosis and antibiotic prescription.
Air trapped in your inner ear is at a higher pressure, so it starts to push outwards on the eardrum.
In it she is alleged to have said that had her eardrum not been "exploding" she would have "dragged the kid out of his mother's arms and stomped him to death".
There are very few ear-related emergencies in ENT; however, when the eardrum appears normal, an innocuously sounding 'blocked ear' may just be one.
One of my former ear doctors knew of my passion for diving and together we planned the timing to remove the ear tube, allow my eardrum to form a scar to close the hole left by the tube removal.
2 : a tubelike passage in the body <The ear canal leads from the opening of the ear to the eardrum.