![3 portal systems yog dab tsi? 3 portal systems yog dab tsi?](https://i.answers-medical.com/preview/medical-health/14130463-what-are-the-3-portal-systems-j.webp)
Video: 3 portal systems yog dab tsi?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Portal venous tshuab raug suav hais tias yog venous vim cov hlab ntsha uas koom nrog ob lub capillary beds yog cov hlab ntsha los yog venules. Piv txwv ntawm xws li tshuab suav nrog lub siab portal qhov system , qhov hypophyseal portalsystem , thiab (hauv cov tsis yog tsiaj) lub raum portalsystem.
Tib neeg kuj nug, Portal system hauv tib neeg lub cev yog dab tsi?
ntshav ncig lawv Cov nqaj qaum qis dua muaj ob lub npe hu ua portalsystems , thaj chaw ntawm venous lawv uas pib incapillaries nyob rau hauv cov ntaub so ntswg thiab koom rau hauv cov hlab ntsha, uas faib mus tsim lwm capillary network nyob rau hauv txoj kev mus rau lub plawv. Lawv raug hu ua lub siab (daim siab) thiab lub raum (ob lub raum) portalsystems.
Ib sab saum toj, dab tsi ua rau lub portal system? Cov kab mob siab portal qhov system Nws yog ib tug kab mob ntawm cov hlab ntsha uas nqa ntshav los ntawm capillaries ntawm lub plab, plab hnyuv, spleen, thiab pancreas mus rau capillaries nyob rau hauv daim siab. Nws yog ib feem ntawm lub cev pom lawv . Cov kab mob siab portal qhov system muaj xws li: Hepatic lub portal leeg: Qhov no yog cov hlab ntsha tseem ceeb txuas nrog lub siab.
Hauv qhov no, lub portal venous system yog dab tsi?
Cov portal venous kua thiab portosystemic venous tshuaj anastomoses. Cov portal venous system ua haujlwm cov ntshav ntws mus rau daim siab los ntawm lub plab ib feem ntawm cov kwj dej alimentary (tshwj tsis yog lub qhov quav), tus po, pancreas thiab gallbladder.
Lub portal system ua haujlwm li cas?
Cov lub portal venous lawv Nws yog lub luag haujlwm rau coj cov ntshav los ntawm qhov chaw ntawm lub plab mus rau lub siab. Cov tshuaj absorbed nyob rau hauv cov hnyuv me yog thawj zaug mus rau lub siab ua ntej mus rau lub plawv.
Pom zoo:
Lub luag haujlwm ntawm infundibulum thiab cov nkoj portal yog dab tsi?
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Hauv qhov infundibulum yog tus choj ntawm cov hlab ntsha uas txuas cov hypothalamus mus rau lub caj pas pituitary. Hypothalamic tso tawm thiab txwv tsis pub cov tshuaj hormones taug kev los ntawm thawj lub capillary plexus mus rau cov leeg leeg, uas nqa lawv mus rau hauv lub caj pas pituitary
Dab tsi yog hepatic portal ncig?
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Lub hom phiaj ntawm hepatic portal ncig yog xa cov ntshav los ntawm qee qhov ntawm lub plab zom mov mus rau daim siab. Hauv lwm lo lus, cov ntshav tau ntws los ntawm cov plab zom mov (thiab tus hnoos qeev, zais zis, thiab txiav txiav) thiab cov ntshav tom qab ntawd xa mus rau lub siab
Portal vein thrombosis yog dab tsi?
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Portal vein thrombosis yog txhaws lossis nqaim ntawm cov hlab ntsha portal (cov hlab ntshav uas nqa ntshav mus rau lub siab los ntawm txoj hnyuv) los ntawm cov ntshav khov. Cov neeg feem coob tsis muaj tsos mob, tab sis hauv qee tus neeg, cov kua dej ntau ntxiv hauv lub plab, tus po tau nthuav dav, thiab/lossis ntshav hnyav tshwm sim hauv txoj hlab pas
Lub portal splenic confluence yog dab tsi?
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Lienal vein yog ib lo lus qub rau splenic leeg. Cov hlab ntsha portal feem ntau yog tsim los ntawm kev sib txuam ntawm cov leeg mesenteric thiab splenic leeg thiab kuj tau txais cov ntshav los ntawm cov hlab ntsha mesenteric, sab laug thiab sab xis, thiab cov hlab ntsha cystic. Cov xwm txheej cuam tshuam nrog cov leeg leeg ua rau muaj mob loj thiab tuag
Portal systems yog dab tsi?
![Portal systems yog dab tsi? Portal systems yog dab tsi?](https://i.answers-medical.com/preview/medical-health/14145633-what-are-the-portal-systems-j.webp)
Lub portal system (Fig. 591) suav nrog tag nrho cov hlab ntsha uas tso cov ntshav los ntawm lub plab ntawm lub plab zom mov (tsuas yog qhov qis ntawm qhov quav) thiab los ntawm tus po, pancreas, thiab gallbladder. Los ntawm cov viscera no cov ntshav xa mus rau lub siab los ntawm cov hlab ntsha portal