Adventitia vs Serosa
Serosa txawv ntawm adventitia vim serosa yog rau lubrication qhov twg raws li adventitia yog khi cov qauv ua ke.
Adventitia yog dab tsi?
Adventiti yog cov ntaub so ntswg sib txuas. Nws yog txheej txheej ntawm cov ntaub so ntswg sab nraud uas nyob ib puag ncig ib puag ncig cov qauv xws li lub cev lossis cov hlab ntsha. Qee lub sij hawm nws tseem hu ua tunica externa tshwj xeeb tshaj yog thaum nws yog adventitia ntawm cov hlab ntsha. Qee lub sij hawm nws txoj haujlwm yuav raug suav tias yog ua tiav rau serosa. Nyob rau hauv lub plab mog, nyob ib ncig ntawm lub cev nrog serosa los yog adventitia nyob ntawm seb lub cev yog peritoneal los yog retroperitoneal. Cov kab mob peritoneal yog ib puag ncig los ntawm serosa, thiab cov kab mob retroperitoneal yog ib puag ncig los ntawm adventitia. Hauv qee lub cev, muscularis externa yog khi los ntawm adventitia. Cov kab mob no yog lub qhov ncauj kab noj hniav, thoracic esophagus, ascending colon, descending colon thiab rectum. Nyob rau hauv lub duodenum, muscularis externa yog khi los ntawm ob qho tib si adventitia thiab serosa.
Serosa yog dab tsi?
Serosa yog daim nyias nyias. Nws muaj ib txheej ntawm cov cell thiab ib tug nyias connective ntaub so ntswg txheej. Cov hlwb secrete serous kua. Serosa encloses qee lub cev kab noj hniav. Cov kab noj hniav ntawm lub cev yog hu ua cov kab noj hniav serous. Hauv serous kab noj hniav, serosa secretes lub lubricating kua kom txo tau qhov kev sib txhuam vim cov leeg nqaij. Serosa muaj ob txheej. Cov txheej txheem sab saud muaj cov cell epithelial secretory, thiab cov txheej txheem qis muaj cov ntaub so ntswg sib txuas. Lub epithelial txheej yog ib txheej squamous yooj yim. Nws muaj ib txheej ntawm cov cell nucleated tiaj tus, uas muaj peev xwm ntawm secreting serous kua. Lub squamous txheej yog khi rau cov ntaub so ntswg txheej hauv qab no. Cov hlab ntsha thiab cov hlab ntsha muaj nyob hauv cov ntaub so ntswg sib txuas. Serosa ntawm lub cev sib txawv yog paub los ntawm ntau lub npe. Hauv lub tsev menyuam, serosa hu ua perimetrium thiab, hauv plawv, serosa suav nrog pericardium thiab epicardium. Muaj peb lub serous kab noj hniav nyob rau hauv lub cev ntawm tib neeg. Cov no yog cov kab noj hniav pericardial nyob ib puag ncig lub plawv, pleural kab noj hniav nyob ib puag ncig lub ntsws thiab cov kab noj hniav peritoneal nyob ib puag ncig cov kabmob feem ntau hauv plab. Lub luag haujlwm tag nrho ntawm serosa yog lubrication. Tsis tas li ntawd, nws muaj lub luag haujlwm tseem ceeb hauv kev ua pa hauv lub ntsws. Intraembryonic coelom ua rau cov kab noj hniav serous. Cov no yog qhov chaw khoob uas nyob ib puag ncig los ntawm serosa. Serosa muaj mesodermal keeb kwm. Thaum lub sij hawm embryonic txoj kev loj hlob, mesoderm yog segmented rau hauv paraxial mesoderm, nruab nrab mesoderm, thiab lateral phaj mesoderm. Lateral phaj coelom splits tsim cov intraembryonic coelom.
Dab tsi yog qhov txawv ntawm Adventitiia thiab Serosa?
• Serosa secretes serous fluid where as adventitia tsis secrete kua.
• Lub luag haujlwm tseem ceeb ntawm adventitia yog khi cov qauv whereas, lub luag haujlwm tseem ceeb ntawm serosa yog lubrication.
