A membrane forming part of the organ of hearing, which vibrates in response to sound waves. In humans and other higher vertebrates it forms the eardrum, between the outer and middle ear.
- Tympanic readings represent a close correlation to patients' core temperatures because of the close proximity of the carotid arteries that vascularize the tympanic membrane and hypothalamus.
- The most common cause of the type B tracing is decreased mobility of the tympanic membrane secondary to middle ear fluid (otitis media with effusion).
- By changes in their development, the articular and the quadrate bones in mammals were modified into two bones, the malleus and incus, whose function was now to transmit sound from the tympanic membrane to the inner ear.
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Syllabification: tym·pan·ic mem·brane
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