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tym·pan·ic mem·brane

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.


See eardrum.
References in periodicals archive ?
Artefacts include a drumskin signed by Ringo Starr, "To Liverpool 2008 Peace and Love, Ringo" taken from the opening ceremony, a poster for La Machine, signed by the production company, backstage passes from the MTV awards and a brooch designed by Maggie Lingard for Boodles, titled The Children of Liverpool.
The drumskin, used on the cover of the Beatles' Sgt Pepper's Lonely Hearts Club Band, is to be auctioned
He once arranged the sale of the drumskin featured on the cover of the Sergeant Pepper's Lonely Hearts Club Band album for EUR80,000.
After we talk, I walk through the exhibits, including some abstract landscapes by Yaqui artist Mario Martinez and eerie transformation masks on hand-stretched drumskins by Alaskan artist Da-ka-xeen Mehner.
The sound of shigu (lion drums) and longgu (dragon drums) with bright-red bases and tacked-on drumskins accentuate the excitement of the performance.
In his imagination the Island of Ptyx is composed of a translucent stone of the same name, comparable to white sapphire but emitting a warmth evocative of drumskins.