Ear, outer
There are three sections of the ear. They are the outer ear, the middle ear, and the inner ear. The outer 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. The outer ear concentrates air vibrations on the ear drum and makes the drum vibrate. The outer ear is also called the external ear.

Medical dictionary. 2011.

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  • Ear — The ear is the sense organ that detects sounds. The vertebrate ear shows a common biology from fish to humans, with variations in structure according to order and species. It not only acts as a receiver for sound, but plays a major role in the… …   Wikipedia

  • ear canal — noun either of the passages in the outer ear from the auricle to the tympanic membrane • Syn: ↑auditory meatus, ↑acoustic meatus, ↑auditory canal, ↑external auditory canal • Hypernyms: ↑meatus • Part Holonyms: ↑ …   Useful english dictionary

  • ear — noun 1) an infection of the ear Syn: inner ear, middle ear, outer ear 2) he had the ear of the president Syn: attention, notice, heed, regard, consideration 3) he has an ear for a good song …   Thesaurus of popular words

  • Outer ear — External and middle ear, opened from the front. Right side. The auricula. Lateral surface …   Wikipedia

  • ear|drum — «IHR DRUHM», noun. 1. a thin membrane across the middle ear that vibrates when sound waves strike it; tympanic membrane; tympanum: »Sound waves enter the outer ear, travel down the ear canal, and strike a thin membrane called the eardrum, which… …   Useful english dictionary

  • 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

  • Ear finger — 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

  • Ear of Dionysius — 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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