![Cov ceg av qab teb ntawm cov hlab ntsha mesenteric qis dua yog dab tsi? Cov ceg av qab teb ntawm cov hlab ntsha mesenteric qis dua yog dab tsi?](https://i.answers-medical.com/preview/medical-health/14067418-what-are-the-tributaries-of-the-inferior-mesenteric-vein-j.webp)
Video: Cov ceg av qab teb ntawm cov hlab ntsha mesenteric qis dua yog dab tsi?
![Video: Cov ceg av qab teb ntawm cov hlab ntsha mesenteric qis dua yog dab tsi? Video: Cov ceg av qab teb ntawm cov hlab ntsha mesenteric qis dua yog dab tsi?](https://i.ytimg.com/vi/JQVVtCXsPoI/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov inferior mesenteric leeg cov dej mesenteric txoj kev arcade ntawm lub hindgut (suav nrog lub distal transverse, nqis, thiab sigmoid nyuv). Tshwj xeeb, nws drains lub cov dej ntws ntawm sigmoid leeg , nruab nrab thiab sab laug colic leeg , as well as cov zoo tshaj qhov quav leeg.
Tsis tas li ntawd, qhov qis qis ntawm cov hlab ntsha mesenteric ntws mus rau qhov twg?
Inferior mesenteric leeg. Raws li ib tug ntshav cov hlab ntsha, lub inferior mesenteric vein (IMV) ntws ntshav deb ntawm txoj hnyuv loj, qhov quav, thiab sigmoid, uas yog txhua feem ntawm qhov loj txoj hnyuv . IMV ceg tawm ntawm cov leeg leeg, uas tseem ceg rau hauv superior mesenteric leeg.
Ib yam li ntawd, qhov inferior mesenteric artery muab dab tsi? Cov inferior mesenteric hlab ntsha (IMA) yog ib ceg loj ntawm lub plab aorta. Nws muab cov ntshav arterial mus rau lub nruab nrog cev ntawm hindgut - qhov deb 1/3 ntawm txoj hnyuv hla, kev hloov pauv ntawm lub cev, txoj hnyuv loj zuj zus, cov hnyuv sigmoid thiab qhov quav.
Tsis tas li ntawd, cov hlab ntsha mesenteric yog dab tsi?
Anatomical lus. Tus superior mesenteric leeg yog cov hlab ntshav uas ntws cov ntshav los ntawm txoj hnyuv me (jejunum thiab ileum). Thaum nws txiav tom qab lub caj dab ntawm tus txiav, qhov zoo tshaj mesenteric leeg ua ke nrog splenic leeg los tsim lub hepatic portal leeg.
Dab tsi ntawm cov hlab ntsha ua rau lub plab?
Lub plab muaj ib tug nplua nuj network ntawm cov hlab ntsha nyob rau hauv nws submucosa. Sab laug lub plab (hlab ntshav) cov hlab ntshav ntws mus rau hauv lub portal cov leeg ntawm nws tsim (los ntawm kev sib koom ua ke ntawm splenic thiab superior mesenteric veins). Txoj cai gastric thiab txoj cai gastro-omental veins ntws mus rau hauv lub portal cov leeg.
Pom zoo:
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Piav qhia: Cov hlab ntshav nqa ntshav nyob hauv siab los ntawm lub plawv mus rau cov kabmob thiab cov nqaij. Lawv cov phab ntsa feem ntau yog tuab dua li cov leeg. Capillaries yog qhov sib txuas ntawm cov hlab ntsha thiab cov leeg thiab me me heev, Cov ntaub so ntswg qee zaum pom tawm thiab rov nco qab los ntawm cov qog ntshav thiab rov qab los rau cov leeg ntshav
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Cov hlab ntsha nqa ntshav tawm ntawm lub plawv; Lub ntsiab hlab ntsha yog aorta. Capillaries nqa ntshav tawm ntawm lub cev thiab pauv cov as-ham, pov tseg, thiab oxygen nrog cov ntaub so ntswg ntawm qib cellular. Cov leeg ntshav yog cov hlab ntshav uas coj cov ntshav rov qab los rau hauv lub plawv thiab tso ntshav tawm ntawm cov kabmob thiab cov ceg
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Muaj plaub hom neuroglia pom nyob hauv nruab nrab lub paj hlwb: Astrocytes - tswj cov ntshav lub hlwb teeb meem thiab khaws cov tshuaj ib puag ncig los ntawm kev siv cov ions rov qab thiab cov tshuaj xa xov mus rau lub cev. Oligodendrocytes - myelinate axons nyob rau hauv lub hauv nruab nrab lub paj hlwb thiab muab tag nrho cov txheej txheem txheej txheem
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Cov leeg yuav tsum tau li qub kom cov ntshav ntws mus rau lub plawv. Theses li qub yog qhov tshwj xeeb hauv ob txhais ceg thiab caj npab. Lawv tawm tsam lub ntiajteb txawj nqus los tiv thaiv cov ntshav rov qab los. Cov hlab ntsha tsis xav tau li qub vim tias lub siab los ntawm lub plawv ua kom cov ntshav ntws los ntawm lawv mus rau ib qho
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Inferior mesenteric leeg. Raws li cov hlab ntsha, cov hlab ntsha tsis zoo mesenteric (IMV) tso ntshav tawm ntawm txoj hnyuv, qhov quav, thiab sigmoid, uas yog tag nrho cov hnyuv loj. IMV ceg tawm ntawm cov leeg leeg, uas tseem ceg mus rau hauv cov hlab ntshav zoo tshaj plaws