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What is the eardrum?

David M. Vernick, MD
Ear, Nose & Throat (Otolaryngology)
The eardrum, or tympanic membrane, is a slender skin-like structure about a half-inch across and about the width of a strand of hair. Although small and slender, the eardrum is a tight barrier that separates the outer ear from the middle ear, a peanut-sized chamber in the skull that's filled with air.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.