![Lub suab tsim tawm hauv plawv li cas? Lub suab tsim tawm hauv plawv li cas?](https://i.answers-medical.com/preview/medical-health/14163485-how-is-sound-produced-in-the-heart-j.webp)
Video: Lub suab tsim tawm hauv plawv li cas?
![Video: Lub suab tsim tawm hauv plawv li cas? Video: Lub suab tsim tawm hauv plawv li cas?](https://i.ytimg.com/vi/DBL31adRoZQ/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Thawj lub plawv suab yog ua los ntawm kev kaw ntawm phau ntawv mitral thiab tricuspid valve. Qhov thib ob lub plawv suab yog ua los ntawm kev kaw ntawm daim ntawv aortic thiab pulmonic valve leaflets.
Hauv kev hais txog qhov no, plaub lub plawv suab zoo li cas?
Cov txheej txheem mloog cov lus (aortic, pulmonic, tricuspid thiab mitral) siv rau ob qho tib si lub plawv suab thiab yws. Piv txwv li, S1 lub plawv suab - suav nrog mitral thiab tricuspid valve kaw - yog qhov zoo tshaj plaws tau hnov ntawm tricuspid (sab laug sab qis sternal ciam teb) thiab mitral (plawv apex) mloog cov lus.
tsib lub plawv suab yog dab tsi? Aortic pulmonary, tricuspid , thiab mitral li qub yog plaub ntawm tsib lub ntsiab lus ntawm auscultation . Qhov thib tsib yog Erb lub ntsiab lus, nyob sab laug ntawm tus ciam teb nyob rau hauv qhov chaw thib peb intercostal.
Tsis tas li, ob lub plawv suab dab tsi thaum lawv tsim?
Feem ntau, ob lub suab sib txawv tau hnov los ntawm lub stethoscope: qis, me ntsis ntev "lub" (thawj lub suab) tshwm sim thaum pib ntawm lub ntsws ventricular contraction, lossis systole, thiab tsim los ntawm kev kaw mitral thiab tricuspid li qub, thiab ua kom pom tseeb, siab dua "dup" (suab thib ob), ua rau …
Lub plawv suab sawv cev dab tsi?
Qhia: S1 - Thawj lub plawv suab (lub) tau hnov lub suab nrov tshaj plaws ntawm cheeb tsam mitral. Qhov no suab sawv cev Qhov kaw ntawm mitral thiab tricuspid li qub thiab yog qhov qis qis, npub suab thaum pib ntawm ventricular systole. S2 - Qhov thib ob lub plawv suab (dub).
Pom zoo:
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Lub hauv paus ntawm lub plawv (sab nraub qaum): Nws tau tsim los ntawm sab laug atrium, uas yog plaub txoj hlab ntshav hlab ntshav. Nws nyob ntawm qhov ntxeev ntawm lub apex
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Yuav luag txhua lub qhov ntswg tso tawm qhov ntswg (lossis qhov ntswg txuas ntxiv mus), qhov cua tawm los ntawm lub qhov ntswg tab sis tsis yog los ntawm lub qhov ncauj, vim nws raug txwv los ntawm daim di ncauj lossis tus nplaig. Feem ntau qhov ntswg tau hais tawm, thiab qhov tseeb, lub qhov ntswg suab [n] thiab [m] yog cov suab nrov tshaj plaws uas siv hauv cov lus hauv ntiaj teb
Yuav ua li cas lub plawv ua lub peev xwm nthuav tawm hauv plawv?
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SA Node tau txuas ncaj qha rau kev cog lus atrial cardiomyocytes thiab qee qhov kev coj ua uas paub zoo hu ua 'Interatrial Band' uas nthuav tawm qhov ua tau sai los ntawm sab xis mus rau sab laug atrium. Yog li, tom qab pib los ntawm SA Node, lub plawv ua haujlwm muaj peev xwm ua ntej kis mus thoob plaws ob qho tib si atria
Yam kev hnov lus tsis zoo dab tsi hauv kev hais lus hauv kev hnov lub suab hnov suab ntsuas?
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Kev hais lus audiometry yog ib qho cuab yeej tseem ceeb hauv kev ntsuas kev hnov lus. Ua ke nrog lub suab ntshiab suab, nws tuaj yeem pab txiav txim siab qib thiab hom kev hnov lus tsis hnov lus. Speech audiometry muab cov ntaub ntawv ntawm kev lees paub lo lus thiab hais txog kev tsis xis nyob lossis ua siab ntev rau kev hais lus
Lub suab tsim tawm hauv kev hais lus li cas?
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Kev hais lus yog tsim los ntawm kev nqa huab cua los ntawm lub ntsws mus rau hauv lub ntsws (ua pa), qhov chaw uas lub suab folds yuav qhib kom cov huab cua hla los yog tuaj yeem vibrate ua suab nrov (phonation). Cov cua ntws los ntawm lub ntsws yog ces zoo li tus articulators nyob rau hauv lub qhov ncauj thiab qhov ntswg (articulation)