Zewnętrzny przewód słuchowy wraz z małżowiną uszną tworzy ucho zewnętrzne. Skupione przez małżowinę dźwięki wpadają do przewodu słuchowego, ma on kształt krętej „rurki” o długości 2,5 cm. Przewód słuchowy ma szkielet chrzęstno-kostny pokryty skórą.
Funkcją przewodu słuchowego jest transmisja i wzmocnienie fali akustycznej docierającej do ucha środkowego. Zadaniem przewodu słuchowego jest również ogrzanie powietrza docierającego do błony bębenkowej oraz jej ochrona przed urazami mechanicznymi.
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Przewód słuchowy jest zabezpieczeniem dla ucha środkowego, a jego główną funkcją jest przewodzenie i wzmocnienie fali akustycznej, która jest przekazywana do ucha środkowego.
Gruczoły woskowinowe znajdują się w przewodzie słuchowym i wytwarzana przez nie wydzielina nawilża oraz pochłania zanieczyszczenia i drobnoustroje. W nadmiernej ilości może tworzyć korek woszczynowy, który jest przeszkodą dla fali akustycznej.
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Małżowinę uszną oraz wejście do przewodu słuchowego należy przemywać ciepłą wodą z dodatkiem łagodnego mydła. Nie należy wlewać do ucha wody pod ciśnieniem, a w przypadku dostania się wody do kanału słuchowego należy go osuszyć.
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