Video: Dab tsi yog tunica media?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov tunica xov xwm (Tshiab Latin "nruab nrab lub tsho loj"), lossis xov xwm luv luv, yog nruab nrab tunica (txheej) ntawm cov hlab ntsha lossis leeg. Nws nyob nruab nrab ntawm tunica intima ntawm sab hauv thiab tunica sab nrauv nyob sab nraud.
Los ntawm qhov ntawd, txoj haujlwm ntawm tunica media yog dab tsi?
Cov tunica media ntawm arterioles muaj ib tug loj npaum li cas ntawm cov nqaij ntshiv, thiab yog li ntawd, arterioles yog cov tseem ceeb regulators ntawm cov ntshav khiav ntawm cov hlab ntsha thiab cov ilv capillaries. Txoj cai no tso cai rau kev sib pauv cov pa roj thiab cov khoom noj muaj txiaj ntsig zoo dua thaum cov ntshav nyob hauv lub txaj capillary.
Tsis tas li ntawd, tunica intima yog dab tsi? Anatomical lus. Cov tunica xav (Tshiab Latin "lub tsho sab hauv"), los yog xav luv luv, yog innermost tunica (txheej) ntawm cov hlab ntsha lossis cov hlab ntsha. Nws yog tsim los ntawm ib txheej ntawm endothelial hlwb thiab yog txhawb los ntawm ib tug internal elastic lamina. Cov kab mob endothelial nyob hauv kev sib cuag ncaj qha nrog cov ntshav ntws.
Ib yam nkaus, tib neeg nug, dab tsi yog tunica media tsim los ntawm?
Cov tunica xov xwm yog tsim feem ntau ntawm cov txheej txheem txheej txheej ntawm cov leeg nqaij. Ib zaug ntxiv, sab nrauv elastic lamina feem ntau cais cov tunica media los ntawm tunica adventitia. Thaum kawg, tus tunica Adventitia yog qhov tseem ceeb muaj los ntawm xoob cov ntaub so ntswg sib txuas ua nce ntawm fibroblasts thiab txuam collagen fibers.
Tunica Adventitia yog dab tsi?
Lub tsho sab nrauv, los yog tunica adventitia , yog ib txheej tawv uas muaj feem ntau ntawm collagen fibers uas ua raws li cov khoom txhawb nqa.
Pom zoo:
Dab tsi yog tunica adventitia muaj?
Tunica adventitia, txheej sab nrauv, yog qhov muaj zog tshaj ntawm peb txheej. Nws yog tsim los ntawm collagenous thiab elastic fibers. (Collagen yog cov protein sib txuas ntawm cov nqaij.) Tunica adventitia muab kev txwv tsis pub muaj, tiv thaiv lub nkoj los ntawm kev nthuav dav ntau dhau
Dab tsi yog qhov sib txawv ntawm otitis media thiab otitis media nrog effusion?
Mob otitis media mob hnyav - AOM hais txog kis mob hnyav ntawm pob ntseg pob ntseg nruab nrab. Otitis media nrog kev tso dej tawm - OME hais txog cov kua hauv pob ntseg nruab nrab uas tsis kis kab mob. OME kuj tseem hu ua serous, secretory, lossis tsis yog otitis media txhawb nqa. OME nquag ua ntej kev txhim kho ntawm AOM lossis ua raws nws qhov kev daws teeb meem
Dab tsi yog qhov sib txawv ntawm tunica media hauv cov hlab ntshav piv rau tunica media hauv cov leeg?
Cov hlab ntsha tsis tau ntsib qhov nrawm nrawm uas cov hlab ntsha ua. Yog li ntawd, lawv tsis tas yuav tsum muaj cov txheej txheem muaj zog, thiab lawv tsis yog. Lub nkoj cov phab ntsa ntawm cov hlab ntshav yog nyias dua cov hlab ntsha thiab tsis muaj ntau npaum li tunica media. Cov xov xwm tunica me me cuam tshuam nrog lub lumen ntau dua hauv cov hlab ntsha
Dab tsi yog tunica media ua los ntawm?
Cov xov xwm tunica tau tsim los ua qhov tseem ceeb tshaj plaws ntawm ib puag ncig txheej txheej cov leeg nqaij. Ib zaug ntxiv, sab nrauv lamina feem ntau cais cov tunica media los ntawm tunica adventitia. Thaum kawg, tunica adventitia feem ntau yog tsim los ntawm cov ntaub so ntswg sib txuas ua los ntawm fibroblasts thiab cuam tshuam nrog collagen fibers
Lub tunica media muaj dab tsi?
Cov xov xwm tunica yog txheej nruab nrab thiab tau tsim los ntawm cov txheej txheej ntawm cov leeg leeg leeg leeg (VSMCs) kos rau hauv collagenous ECM uas muaj cov txheej txheem glycoproteins thiab proteoglycans xws li hyaluronan thiab décorin, thiab piav qhia los ntawm cov yas laminae