Video: Dab tsi yog venous channels?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Venous sinus, hauv tib neeg lub cev, ib yam ntawm cov raws ntawm cov ceg ntoo sib txuas ua ke nyuaj ua ke uas nyob nruab nrab ntawm txheej ntawm dura mater, txheej sab nrauv ntawm lub paj hlwb, thiab ua haujlwm kom sau cov ntshav uas tsis muaj oxygen. Tsis zoo li leeg , cov sinuses no tsis muaj cov tsho loj.
Hauv qhov no, cov hlab ntshav ua dab tsi?
Cov pa hla dhau phab ntsa ntawm koj cov hlab ntsha mus rau koj cov ntaub so ntswg. Cov pa roj carbon dioxide tseem tuaj yeem txav mus rau hauv koj cov hlab ntsha los ntawm cov ntaub so ntswg ua ntej nkag mus rau koj cov leeg. Cov kab mob venous hais txog kev sib txuas ntawm cov leeg uas ua haujlwm kom xa deoxygenated ntshav rov los rau koj lub siab.
Ib qho ntxiv, cov venous sinus nyob qhov twg? Dural venous sinus yog cov leeg ntshav raws nyob intracranially ntawm ob txheej ntawm dura mater (txheej endosteal thiab meningeal txheej). Lawv tuaj yeem tsim lub tswv yim raws li cov leeg ntawm cov hlab ntsha. Tsis zoo li lwm cov leeg hauv lub cev, lawv khiav ib leeg, tsis sib thooj rau cov hlab ntsha.
Ua kom pom qhov no, muaj pes tsawg tus venous sinuses nyob ntawd?
kaum ib leeg venous sinus
Kev tso ntshav tawm yog dab tsi?
Txheej txheem cej luam. Grossly, cov cov leeg ntshav cov kab ke yog tsim los ntawm cov hlab ntshav thiab cov leeg me thiab zoo, uas ua haujlwm kom rov qab cov ntshav los ntawm cov ntaub so ntswg mus rau lub plawv (saib cov duab hauv qab no). Lawv xa cov ntshav los ntawm cov ntaub so ntswg mus rau cov leeg sib sib zog nqus los ntawm perforations hauv qhov tob tob.
Pom zoo:
Dab tsi yog venous shunt?
Intrahepatic portosystemic venous shunts (IPSVSs) tsis tshua muaj kab mob hauv lub cev tsis zoo uas tuaj yeem yug los lossis tau txais. Hauv hom 2 IPSVS, ib lossis ntau qhov kev sib txuas tau muaj nyob ntawm cov ceg ntoo sab hauv ntawm lub qhov rooj thiab cov leeg leeg hauv ib leeg ua ntu ntu
Dab tsi yog central venous oxygen saturation?
SvO2 / ScvO2 (sib xyaw lossis central venous oxygen saturation) yog ib qho tseem ceeb tab sis feem ntau tsis to taub hemodynamic parameter. Tus nqi oxygen txaus nyob hauv cov hlab ntshav thaum nws nkag mus rau hauv lub txaj capillary raug xa mus rau qhov muaj peev xwm xa cov pa (DO2), vim kev rho tawm tseem tsis tau tshwm sim
Lub luag haujlwm ntawm venous system yog dab tsi?
Qhov tseem ceeb ntawm cov hlab ntshav Hauv qhov sib piv, cov hlab ntshav txoj haujlwm yog thauj cov ntshav deoxygenated los ntawm lub cev rov mus rau lub plawv thiab txij ntawd mus rau lub ntsws
Dab tsi yog qhov implanted venous access device?
Qhov chaw nkag mus rau cov leeg ntshav yog ib qho cuab yeej siv los muab kev kho mob thiab siv ntshav. Nws kuj tseem yuav raug hu ua central venous access device (CVAD). Qhov chaw nres nkoj yog ib lub thawv me me uas muab tso rau hauv qab koj cov tawv nqaij, feem ntau nyob rau hauv koj lub hauv siab. Ib qhov chaw nres nkoj tuaj yeem muab tso rau hauv koj txhais caj npab lossis lub plab
Dab tsi yog venous leg ulcer?
Cov tawv nqaij tawv nqaij yog mob rau ntawm koj txhais ceg uas qeeb heev los kho, feem ntau yog vim tsis muaj ntshav ncig hauv caj dab. Koj tuaj yeem hnov tus kws kho mob lossis tus kws saib xyuas neeg mob hu lawv "venous leg ulcers." Qee zaum lawv tuaj yeem ua rau muaj teeb meem hnyav dua yog tias koj tsis kho lawv