Eardrum
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For other uses, see Eardrum (disambiguation).
Eardrum 
Anatomy of the human ear. 
Right tympanic membrane as seen through a speculum. Latin membrana tympani Gray's subject #230 1039 MeSH Tympanic+Membrane+Lydia Dorlands/Elsevier Tympanic membrane The eardrum, or tympanic membrane, is a thin membrane that separates the external ear from the middle ear in humans and other tetrapods. Its function is to transmit sound from the air to the ossicles inside the middle ear. The malleus bone bridges the gap between the eardrum and the other ossicles. Rupture or perforation of the eardrum can lead to conductive hearing loss.
Contents
Intentional rupture
The Bajau people of the Pacific intentionally rupture their eardrums at an early age in order to facilitate diving and hunting at sea. Many older Bajau are therefore hard of hearing.[1]
Gallery
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External and middle ear, opened from the front. Right side.
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Horizontal section through left ear; upper half of section.
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The right membrana tympani with the hammer and the chorda tympani, viewed from within, from behind, and from above.
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Auditory tube, laid open by a cut in its long axis.
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Chain of ossicles and their ligaments, seen from the front in a vertical, transverse section of the tympanum.
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Right tympanic membrane as seen through a speculum.
References
External links
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Look at other dictionaries:
Eardrum — Album par Talib Kweli Sortie 21 août 2007 Enregistrement 2006 … Wikipédia en Français
Eardrum — Ear drum , n. (Anat.) The tympanum. See Illust. of {Ear}. [1913 Webster] … The Collaborative International Dictionary of English
eardrum — (n.) 1640s, from EAR (Cf. ear) (1) + DRUM (Cf. drum) (n.) … Etymology dictionary
eardrum — ► NOUN ▪ the membrane of the middle ear, which vibrates in response to sound waves … English terms dictionary
eardrum — [ir′drum΄] n. TYMPANUM (sense 1) … English World dictionary
eardrum — n. a perforated eardrum * * * [ ɪədrʌm] a perforated eardrum … Combinatory dictionary
eardrum — UK [ˈɪə(r)drʌm] / US [ˈɪrˌdrʌm] noun [countable] Word forms eardrum : singular eardrum plural eardrums a piece of tightly stretched skin inside your ear that vibrates when sound reaches it … English dictionary
eardrum — Synonyms and related words: Eustachian tube, allantoic membrane, amnion, amniotic sac, anvil, arachnoid membrane, auditory apparatus, auditory canal, auditory meatus, auditory nerve, auditory ossicles, auditory tube, auricle, basement membrane,… … Moby Thesaurus
eardrum — /ˈɪədrʌm / (say eardrum) noun the tympanic membrane … Australian English dictionary
eardrum — noun Date: 1645 tympanic membrane … New Collegiate Dictionary
