External ear

There are three sections of the ear. They are the external ear, the middle ear, and the inner ear. The external ear looks complicated but it is functionally the simplest part of the ear. It consists of the pinna or auricle (the visible projecting portion of the ear), the external acoustic meatus (the outside opening to the ear canal), and the external ear canal that leads to the ear drum. In sum, there is the pinna, the meatus and the canal. And the external ear has only to concentrate air vibrations on the ear drum and make the drum vibrate. The external ear is also called the outer ear.

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external ear n the parts of the ear that are external to the eardrum also PINNA

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auris externa.

Medical dictionary. 2011.

Look at other dictionaries:

  • external ear — n. the part of the ear outside the tympanic membrane: see EAR1 …   English World dictionary

  • external ear — noun the part of the ear visible externally • Syn: ↑outer ear • Hypernyms: ↑external organ • Part Holonyms: ↑auditory apparatus • Part Meronyms: ↑auditory meatus …   Useful english dictionary

  • external ear — UK / US noun [countable] Word forms external ear : singular external ear plural external ears medical the outside part of the ear …   English dictionary

  • external ear — exter′nal ear′ n. anat. the outer portion of the ear, consisting of the auricle and the external auditory meatus …   From formal English to slang

  • external ear — /əkˈstɜnəl ɪə/ (say uhk sternuhl ear) noun that section of the ear which is made up of its projecting outer portion and the ear canal …   Australian English dictionary

  • external ear — noun The outer ear. See Also: internal ear …   Wiktionary

  • external ear — the outer portion of the ear, consisting of the auricle and the canal extending to the tympanic membrane. See diag. under ear1. * * * …   Universalium

  • external ear — noun the parts of the ear outside the eardrum, especially the pinna …   English new terms dictionary

  • Intrinsic muscles of external ear — Infobox Muscle Name = PAGENAME Latin = GraySubject = 229 GrayPage = 1035 Caption = The muscles of the auricula. Caption2 = Origin = Insertion = Blood = Nerve = Action = Antagonist = MeshName = MeshNumber = DorlandsPre = DorlandsSuf = The… …   Wikipedia

  • Ear — Ear, n. [AS. e[ a]re; akin to OFries. [ a]re, [ a]r, OS. ?ra, D. oor, OHG. ?ra, G. ohr, Icel. eyra, Sw. [ o]ra, Dan. [ o]re, Goth. auso, L. auris, Lith. ausis, Russ. ukho, Gr. ?; cf. L. audire to hear, Gr. ?, Skr. av to favor, protect. Cf.… …   The Collaborative International Dictionary of English

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