Article
Development of the mammalian ear: coordinate regulation of formation of the tympanic ring and the external acoustic meatus.
Development (Cambridge, England) - 1 Jan 1996
Mallo M, Gridley T
Abstract excerpt
The tympanic membrane in mammals is a trilaminar structure formed by the apposition of two epithelial cell layers, along with an intervening layer of cells derived from pharyngeal arch mesenchyme. One epithelial layer is contributed by the external acoustic meatus, a derivative of the first pharyngeal cleft. The other epithelial layer is contributed by the tubotympanic recess, a derivative of the first pharyngeal...
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