, 1. Inleiding
- Buitenoor
o Oorschelp
o Uitwendige gehoorgang
o Trommelvlies
- Middenoor: gehoorbeentjes
- Binnenoor: receptoren voor evenwicht en gehoor
- Alles omgeven door botweefsel van rotsbeen/os petrosum
2.1.2 Bouw
- Is anders bij iedereen
- Dunne huidplooi
- Centrale as= elastisch kraakbeen vorm geven
- Meerlagig verhoornd plaveiselepitheel
- Fijne haartjes en talgklieren
- Rond ingang: tragi
o = dikkere haren
o Tegenhouden van stofdeeltjes om trommelvlies te beschermen
- Hypodermis
o Aanwezig achteraan
o Afwezig vooraan
- Beperkte spieren aanwezig
2.2 Buitenste gehoorgang
- Voor iedereen verschillend
- Tot tegen trommelvlies: 3.5 cm lang
- Lichte knik veranderde richting
- Meerlagig verhoornd plaveiselepitheel
- Dermis
o Talgklieren
o Gewijzigde apocriene zweetklieren= cerumenklieren: productie cerumen/oorsmeer
Beschermt tegen vocht + beschadiging + infecties
Soepel houden van weefsel
Beschermen tegen verweking van weefsel
Bestaat uit onverzadigde vetzuren die oxideren bij contact met lucht lange
blootstelling geeft donkerdere kleur van oorsmeer
- Buitenste 3/5: C-vormig elastische kraakbeen buis
- Binnenste 2/5: bot
- Functie
o Resonator
o Versterkt geluidstrillingen
2
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