WordNet

the quantity contained in a can (同)canful
preserve in a can or tin; "tinned foods are not very tasty" (同)tin, put_up
airtight sealed metal container for food or drink or paint etc. (同)tin, tin_can
a buoy with a round bottom and conical top (同)can buoy
fruiting spike of a cereal plant especially corn (同)spike, capitulum
attention to what is said; "he tried to get her ear"
good hearing; "he had a keen ear"; "a good ear for pitch"
the sense organ for hearing and equilibrium
provide (a city) with a canal (同)canalize, canalise
long and narrow strip of water made for boats or for irrigation
(astronomy) an indistinct surface feature of Mars once thought to be a system of channels; they are now believed to be an optical illusion
the Babylonian god of wisdom; son of Apsu and father of Marduk; counterpart of the Sumerian Enki; as one of the supreme triad including Anu and Bel he was assigned control of the watery element
the 5th letter of the Roman alphabet (同)e

PrepTutorEJDIC

《能力》『…することができる』　《可能性・推量》　《平叙文で》『…であり得る』　し得る,かもしれない　《否定文で》…のはずがない,ではあり得ない　《疑問文で》いったい…だろうか　《話》《許可・軽い命令》『…してもよい』　…してあげよう;《疑問文で》…してくれませんか
『かん』(取っ手・ふた・口のついた金属・プラスチック製容器・コップなど) / 《米》(かん詰めの)『かん』,かん詰め(《英》 tin) / かん1杯(の…)《+『of』+『名』》 / …'を'かん詰めにする(また《英》『tin』) / 《米俗》…'を'くびにする
canceled / cancellation / canon / canto
〈C〉『耳』 / 《単数形で》『聴覚』,聴力,音感 / 《単数形で》じっと聞くこと,傾聴 / 〈C〉耳の形をした物
(麦・とうもろこしなどの)穂
『運河』 / (食道・気菅などの)導菅 / (火星の苗面に見える)運河状の地形

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/02/23 11:26:08」(JST)

wiki en

The ear canal (external acoustic meatus, external auditory meatus, EAM) (Latin: meatus acusticus externus), is a tube running from the outer ear to the middle ear. The adult human ear canal extends from the pinna to the eardrum and is about 2.5 centimetres (1 in) in length and 0.7 centimetres (0.3 in) in diameter.

StructureEdit

The human ear canal is divided into two parts. The elastic cartilage part forms the outer third of the canal, Its anterior and lower wall are cartilaginous, whereas its superior and back wall are fibrous. The cartilage is the continuation of the cartilage framework of pinna. The bony part forms the inner two thirds. The bony part is much shorter in children and is only a ring (annulus tympanicus) in the newborn.

Size and shape of the canal vary among individuals. The canal is approximately 2.5 centimetres (1 in) long and 0.7 centimetres (0.28 in) in diameter.^[2] It has a sigmoid form and runs from behind and above downward and forward. On the cross-section, it is of oval shape. These are important factors to consider when fitting earplugs.

DisordersEdit

Due to its relative exposure to the outside world, the ear canal is susceptible to diseases and other disorders. Some disorders include:

Atresia of the ear canal
Bone exposure, caused by the wearing away of skin in the canal
Cholesteatoma
Contact dermatitis of the ear canal
Ear fungus
Ear mites in animals
Ear myiasis, an extremely rare infestation of maggots
Foreign body in ear
Granuloma, a scar usually caused by tympanostomy tubes
Otitis externa (swimmer's ear), bacteria-caused inflammation of the ear canal
Stenosis, a gradual closing of the canal

EarwaxEdit

Earwax, also known as cerumen, is a yellowish, waxy substance secreted in the ear canals. It plays an important role in the human ear canal, assisting in cleaning and lubrication, and also provides some protection from bacteria, fungi, and insects. Excess or impacted cerumen can press against the eardrum and/or occlude the external auditory canal and impair hearing, causing conductive hearing loss.

Additional imagesEdit

Base of skull. Inferior surface.
Left infratemporal fossa.
External and middle ear, opened from the front. Right side.
Horizontal section through left ear; upper half of section.
Lateral head anatomy detail.Facial nerve dissection.

ReferencesEdit

^ hednk-022—Embryo Images at University of North Carolina
^ Faddis, B. T. (2008). "Structural and functional anatomy of the outer and middle ear". In W. Clark & K. Ohlemiller (Eds.), Anatomy and physiology of hearing for audiologists (pp. 93–108). Thomson Delmar Learning.

External linksEdit

Veterans Health Administration web site
OSHA web site
Continuing Medical Education Ear Photographs
Otoscopy Tutorial w/ Images
Anatomy diagram: 34257.000-1 at Roche Lexicon - illustrated navigator, Elsevier

UpToDate Contents

全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.

1. External otitis: Pathogenesis, clinical features, and diagnosis
2. External otitis: Treatment
3. 小児における耳漏（耳だれ）の評価 evaluation of otorrhea ear discharge in children
4. 悪性（壊死）外耳炎 malignant necrotizing external otitis

English Journal

A retrospective study on post-operative hearing of middle ear cholesteatoma patients with labyrinthine fistula.

Bo Y1, Yang Y1,2, Xiaodong C1, Xi W1, Keyong T1, Yu Z1, Ye W1, Kun L1, Zheng Y1, Yang C1, Jianhua Q1.
Acta oto-laryngologica.Acta Otolaryngol.2016 Jan;136(1):8-11. doi: 10.3109/00016489.2015.1087650. Epub 2015 Oct 23.
CONCLUSIONS: There is no significant change in bone conduction threshold after operation, so the tympanoplasty can be done to maintain hearing when conditions allow.OBJECTIVE: To study the impact of surgical treatment on hearing of cholesteatoma patients with labyrinthine fistula.METHODS: The clinic
PMID 26493192

Revision surgery for canal wall down mastoidectomy: intra-operative findings and results.

Li S1, Meng J1, Zhang F1, Li X1, Qin Z1.
Acta oto-laryngologica.Acta Otolaryngol.2016 Jan;136(1):18-22. doi: 10.3109/00016489.2015.1092170. Epub 2015 Sep 25.
CONCLUSION: Canal wall down mastoid surgery following multiple earlier surgical failures can be revised by a well-trained experienced surgeon. A dry and safe ear is obtainable in most patients, and hearing preservation is also possible.OBJECTIVES: To analyze the intra-operative findings in revision
PMID 26406779

Japanese Journal

外耳道に突出した猫の鼻咽頭ポリープの細胞学的特徴 (日本獣医師会学会学術誌) -- (小動物臨床関連部門)

日本獣医師会雑誌 = Journal of the Japan Veterinary Medical Association 69(7), 401-404, 2016-07
NAID 40020913102

外耳道パルスエコーによる個人認証システムの基礎評価

システム制御情報学会研究発表講演会講演論文集 60, 4p, 2016-05-25
NAID 40020835411

1F44 新生児外耳道の発達と外耳・中耳動特性の経時変化

バイオエンジニアリング講演会講演論文集 2016(28), "1F44-1"-"1F44-5", 2016-01-09
NAID 110010052105

「can」

External acoustic meatus
	Anatomy of the human ear.
Details
Precursor	groove (cleft) of the first branchial arch.
Artery	anterior part: superficial temporal artery; posterior part: posterior auricular artery
Vein	superficial temporal veins, external jugular vein, pterygoid plexus
Nerve	auriculotemporal nerve, great auricular nerve, auricular branch of vagus nerve
Lymph	superficial cervical lymph nodes, deep cervical lymph nodes
Identifiers
Latin	meatus acusticus externus
Dorlands; /Elsevier	m_06/12518132
TA	A15.3.01.045
FMA	61734
	Anatomical terminology [edit on Wikidata]