Thaum lub sij hawm ventricular contraction, lub atria so (atrial diastole) thiab tau txais venous rov los ntawm ob lub cev thiab lub ntsws. Tom qab ntawd, nyob rau hauv ventricular diastole, lub sab hauv sab xis, tso cai rau pib passive filling ntawmcov tuab-walled ventricles thiab khoob ntawm atria.
Puas ventricular filling passive lossis nquag?
Lub sijhawm puv nrawm no yog tshwm sim los ntawm nquag nqus cov ntshav rau hauv lub ventricle thiab yog lub luag haujlwm rau feem ntau ntawm kev txhaws thaum lub sijhawm diastole [17]. Kev txhaws qeeb tshwm sim los ntawm qhov tsis txaus siab ntawm lub plawv los ntawm cov hlab ntsws.
Yuav ua li cas feem pua ntawm ventricular filling yog passive?
Atrial contraction (Thawj Theem)
Qhov no yog theem ntawm atrial contraction. 80% ntawm ventricular filling tau ua dhau los txawm tias ua ntej qhov pib ntawm atrial contraction thiab 20% ntawm cov ventricular filling yog vim atrial contraction. Qhov active filling ntawm ventricles yuav ua rau muaj txiaj ntsig thaum lub cev ua si.
Puas passive lossis active ventricular filling tshwm sim ua ntej?
Atrial contraction ib txwm suav txog li 10% ntawm sab laug ventricular filling thaum tus neeg so vim tias feem ntau ntawm ventricular filling tshwm sim ua ntej atrial contraction raws li cov ntshav ntws los ntawm lub ntsws. cov leeg, mus rau sab laug atrium, ces mus rau sab laug ventricle los ntawm qhib mitral valve.
ventricular filling yog dab tsi?
Definition. Lub siab uas tsim nyob rau hauv lub ventricle lilub ventricle tau puv nrog cov ntshav, feem ntau sib npaug rau qhov nruab nrab atrial siab thaum tsis muaj A-V valvular gradient.
