Video: Ntev npaum li cas yog lub qhov hnov pob ntseg sab nraud?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Lub pob ntseg kwj dej (sab nraud acoustic meatus, sab nraud auditory meatus, EAM) yog ib txoj hauv kev khiav ntawm pob ntseg mus rau nruab nrab pob ntseg. Cov neeg laus pob ntseg pob ntseg txuas los ntawm tus pinna mus rau pob ntseg thiab yog li 2.5 centimeters (1 hauv) ntev thiab 0.7 centimeters (0.3 nti) diam.
Dhau li, qhov chaw sab nrauv hnov pob ntseg xaus qhov twg?
Cov qauv ntawm cov sab nraud auditory kwj dej yog tib yam hauv txhua hom tsiaj. Nyob rau hauv tsos nws yog ib tug me ntsis nkhaus raj uas txuas rau sab hauv los ntawm hauv pem teb ntawm auricle, los yog protruding feem ntawm lub pob ntseg sab nrauv , thiab xaus blindly ntawm lub pob ntseg membrane, uas cais nws los ntawm nruab nrab pob ntseg.
Qhov thib ob, qhov nruab nrab pob ntseg tob npaum li cas? Sab nrauv acoustic meatus yog a kwj dej ntsuas 25 mm hauv qhov tob thiab 6-8 mm txoj kab uas hla. Nws nthuav tawm los ntawm concha mus rau tympanic membrane. Nyob rau hauv nws cov phab ntsa muaj ntau secretory ceruminous qog.
Ib sab ntawm no, txoj haujlwm ntawm lub qhov hnov pob ntseg sab nraud yog dab tsi?
Cov pob ntseg - cov auditory channel Thaum lub suab tsis dhau tus pinna, lawv txav ob mus rau peb centimeters mus rau hauv lub mloog pob ntseg ua ntej tsoo lub pob ntseg, tseem hu ua tympanic membrane. Cov ua haujlwm ntawm pob ntseg pob ntseg yog xa suab los ntawm tus pinna mus rau lub pob ntseg.
Dab tsi yog sab nrauv hnov pob ntseg ua los ntawm?
pob txha mos
Pom zoo:
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