![Acoustic reflex test yog dab tsi? Acoustic reflex test yog dab tsi?](https://i.answers-medical.com/preview/medical-health/13869827-what-is-acoustic-reflex-test-j.webp)
Video: Acoustic reflex test yog dab tsi?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Acoustic reflex (AR) xeem yog siv los saib xyuas stapedial reflex uas tshwm sim los teb rau cov suab nrov. Thaum lub rov ua dua tshwm sim los ntawm cov leeg nqaij stapedius txhav txhav tas cov saw hlau, uas tuaj yeem kuaj pom los ntawm kev ntsuas qhov lees paub ntawm pob ntseg nruab nrab.
Ntawm no, dab tsi ntsuas suab ntsuas suab?
Acoustic reflexes ntsuas lub stapedius thiab lub tensor tympani rov ua dua tsim cov pob ntseg txav los teb rau cov suab nrov. Lawv tau pab tau hauv kev txheeb xyuas yam tshwj xeeb ntawm kev hnov lus tsis zoo hauv cov xwm txheej uas tus neeg mob ntseeg tau yog muaj lus nug. Lawv kuj qee zaum taw tes rau hauv nruab nrab lub paj hlwb pathology.
Tsis tas li ntawd, dab tsi yog tympanic reflex? Cov tympanic reflex pab tiv thaiv kev puas tsuaj rau sab hauv pob ntseg los ntawm muffling kis ntawm kev co los ntawm lub qhov muag membrane mus rau lub qhov rais oval. Cov rov ua dua muaj lub sijhawm teb ntawm 40 milliseconds, tsis nrawm txaus los tiv thaiv pob ntseg los ntawm lub suab nrov nrov tam sim xws li tawg lossis phom.
Los ntawm qhov ntawd, dab tsi yog qhov pib ua suab nrov zoo ib yam?
Acoustic reflex pib ART yog lub luag haujlwm ntawm qib suab nrov thiab zaus. Cov neeg nrog li qub hnov muaj ib acoustic reflex pib (ART) ncig 70-100 dB SPL. Cov acoustic reflex pib feem ntau yog 10-20 dB hauv qab qhov tsis xis nyob qhov pib.
Dab tsi yog ipsilateral acoustic reflexes?
Thaum lub suab nrov nkag mus rau lub pob ntseg ib txwm, cov leeg nqaij stapedius yuav sib cog lus ntawm ob sab tsis hais lub pob ntseg twg tau txhawb nqa. Yog li, ART yog ob tog ("ob sab") rov ua dua . Peb, lo lus ib ipsilateral (ipsi) txhais tau tias "tib sab" thiab sab nraub qaum (contra) txhais tau tias "sab nraud".
Pom zoo:
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Kev ua kom rov ua dua tshiab, tseem hu ua kev rov ua dua tshiab, yog qhov tsis tuaj yeem ua haujlwm thiab yuav luag txhua lub sijhawm txav mus los hauv kev teb rau qhov kev txhawb siab. Txoj kev coj los ntawm cov hlab ntsha hauv qhov kev xav tau hu ua reflex arc. Hauv cov tsiaj siab dua, feem ntau cov paj hlwb tsis nkag ncaj qha mus rau hauv lub hlwb, tab sis sib txuas hauv cov leeg txha caj qaum
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Thaum qhov kev xav rov qab muaj tsuas yog ob lub paj hlwb, ib lub paj hlwb thiab ib lub paj hlwb, nws tau txhais ua monosynaptic. Monosynaptic hais txog qhov muaj ib qho tshuaj synapse nkaus xwb. Los ntawm kev sib piv, hauv polysynaptic reflex arcs, ib lossis ntau tus kws tshaj lij sib txuas sib txuas ua ke (hnov qab) thiab ua haujlwm zoo (lub cev muaj zog) cov cim
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Lub sij hawm poob ntawm txoj cai reflex. Lub sijhawm nruab nrab ntawm lub sijhawm taw tes uas ib qho kev kawm poob lub peev xwm los ua txoj haujlwm zoo thaum muaj kev tawm mus los ntawm nws thiab lub sijhawm taw tes ntawm qhov kev kawm rov ua kom pom qhov muaj peev xwm. Synonyms
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Reflex anoxic seizures yog ib daim ntawv ntawm syncope feem ntau pib thaum menyuam mos lossis thaum yau. Lawv tau nag lossis daus los ntawm kev ua kom tsis zoo, uas tuaj yeem ua rau lub cev lossis lub siab xav. Rau cov laj thawj tseem tsis tau paub, qhov tsis txaus siab stimulus ua rau lub vagally mediated luv asystole, uas yog lub luag haujlwm rau lub syncope