Ib yam ECG taug qab ntawm lub voj voog plawv (lub plawv dhia) muaj P nthwv dej (atrial depolarization), QRS complex QRS complex Nws feem ntau yog qhov nruab nrab thiab pom tseeb feem ntau ntawm kev taug qab. Nws sib haum mus rau depolarization ntawm sab xis thiab sab laug ventricles ntawm lub plawv thiab contraction ntawm cov leeg ventricular loj. Hauv cov neeg laus, QRS complex feem ntau kav 80 mus rau 100 ms; Hauv cov menyuam yaus nws yuav luv dua. https://en.wikipedia.org › wiki › QRS_complex
QRS complex - Wikipedia
(ventricular depolarization), thiab T yoj (ventricular repolarization). Ib nthwv dej ntxiv, U nthwv dej (Purkinje repolarization), feem ntau pom, tab sis tsis tas li.
Dab tsi yog cov khoom ntawm lub voj voog plawv?
Lub voj voog plawv yog qhov tseem ceeb faib ua ob theem, systole (theem contraction) thiab diastole (theem so). Txhua yam ntawm no tau muab faib ntxiv rau hauv ib qho atrial thiab ventricular tivthaiv.
Peb ntu ntawm lub voj voog plawv yog dab tsi?
Lub Cycle
Txhua lub plawv dhia muaj peb theem loj: atrial systole, ventricular systole, thiab ua tiav plawv diastole. Atrial systole yog qhov contraction ntawm lub atria uas ua rau ventricular filling.
5 theem ntawm lub plawv dhia yog dab tsi?
5 Phase ntawm Lub Cycle
- Atrial Systole.
- Ua ntejVentricular Systole.
- Ventricular Systole.
- Early Ventricular Diastole.
- Late Ventricular Diastole.
YPuas yog depolarization systole lossis diastole?
Pib, ob qho tib si atria thiab ventricles tau so (diastole). P yoj sawv cev rau depolarization ntawm atria thiab ua raws li atrial contraction (systole).
