Video: S1 thiab s2 hnov qhov twg?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
S1 tuaj yeem hnov zoo tshaj qhov apex , siv lub stethoscope lub tswb los yog diaphragm. Thawj lub siab lub suab yog tshwm sim los ntawm turbulence tsim thaum lub mitral thiab tricuspid qhov tseem ceeb kaw. S1 thiab S2 lub plawv suab feem ntau piav raws li lub - dub.
Tsis tas li lo lus nug yog, lub suab s2 lub plawv nyob qhov twg?
A2 yog hnov dav thoob plaws hauv siab. Yog li thaum koj hnov ' S2 'ntawm thaj chaw mitral, koj yog tiag tiag hnov lus A2. Feem ntau, P2 yog mos thiab nkaus xwb hnov ntawm thaj tsam pulmonic (sab laug parasternal, intercostal space 2), txawm li cas los xij hauv thaj av A2 no nrov dua.
Tom qab ntawd, lo lus nug yog, s1 thiab s2 suab sawv cev dab tsi? Lub plawv Suab Thawj lub siab suab ( S1 ) sawv cev kaw ntawm atrioventricular (mitral thiab tricuspid) li qub raws li cov hlab ntsha hauv siab tshaj li atrial pressures thaum pib ntawm systole (taw tes a). Lub plawv thib ob suab ( S2 ) sawv cev kaw lub semilunar (aortic thiab pulmonary) li qub (taw tes d).
Yog li ntawd, qhov twg s1 thiab s2 hnov sib npaug?
1 Kev Ntsuam Xyuas Lub Plawv
| Lus Nug | Teb |
|---|---|
| S1 Puas yog nws hnov zoo tshaj ntawm lub hauv paus lossis apex? | nrov tshaj plaws ntawm Apex |
| S1 puas hnov hauv Systole lossis Diastol? | Pib ntawm Systole |
| S1 uas kaw li qub ua lub suab no? | AV li qub Mitral thiab Tricuspid |
| S2 puas yog nws hnov zoo tshaj plaws ntawm lub hauv paus lossis apex? | nrov tshaj plaws ntawm lub hauv paus |
s1 thiab s2 yog dab tsi?
Lub "lub" yog thawj lub suab suab, feem ntau hu ua S1 , thiab yog tshwm sim los ntawm turbulence tshwm sim los ntawm kev kaw ntawm mitral thiab tricuspid li qub thaum pib ntawm systole. Lub plawv thib ob suab, "dub" los yog S2 , yog tshwm sim los ntawm kev kaw ntawm aortic thiab pulmonic li qub, cim qhov kawg ntawm systole.
Pom zoo:
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