Video: Qhov atrial repolarization tshwm sim nyob qhov twg?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Tsis muaj qhov pom pom tseeb uas sawv cev rau atrial repolarization hauv ECG vim nws tshwm sim thaum lub sij hawm ventricular depolarization. Vim yog lub zog ntawm atrial repolarization yog qhov me me hauv qhov dav (piv txwv li, muaj qhov hluav taws xob qis), nws tau npog los ntawm qhov loj dua qhov ua pa ntawm lub paj hlwb QRS nyuaj.
Raws li, dab tsi yog atrial repolarization?
Atrial thiab ventricular depolarization thiab repolarization tau sawv cev ntawm ECG ua ntu ntu ntawm nthwv dej: P yoj tom qab los ntawm QRS txoj thiab T wave. Wave ntawm atrial repolarization yog pom vim tsis muaj amplitude.
yog vim li cas T yoj ntawm kev rov ua dua tshiab zoo? Hauv ntau qhov kev coj ua, cov T yoj yog zoo . Qhov no yog vim li cas repolarization ntawm daim nyias nyias. Qhov ob qhov tsis zoo ntawm kev taw qhia thiab them nqi yog vim li cas T yoj yog zoo ; txawm hais tias lub xov tooj tau dhau los ua qhov tsis zoo, cov txiaj ntsig muaj nyob hauv zoo kev taw qhia, thiab ECG qhia qhov no raws li a zoo ntsia hlau loj.
Ib qho ntxiv, yuav muaj dab tsi tshwm sim thaum lub sij hawm atrial repolarization?
Atrial systole txuas mus txog rau QRS txoj haujlwm, nyob rau lub sijhawm twg, atria cov so. QRS txoj kab ke sawv cev rau kev tso pa tawm ntawm lub ventricles thiab ua raws los ntawm cov hlab ntshav qis. T wave sawv cev rau repolarization ntawm lub ventricles thiab cim pib ntawm ventricular so.
Repolarization thiab depolarization ntawm lub plawv yog dab tsi?
Ua tau tej zaum hauv neuron, qhia depolarization , uas lub xov tooj ntawm tes them sab hauv dhau los ua qhov tsis zoo (zoo dua), thiab repolarization , qhov twg tus nqi sab hauv rov qab los rau tus nqi ntau dua.
Pom zoo:
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