Qhov sib txawv tseem ceeb ntawm cov epithelium thiab endothelium yog qhov epithelium yog cov ntaub so ntswg uas kab cov txheej txheem ntawm lub cev thiab cov hlab ntsha, nrog rau sab hauv ntawm cov kab noj hniav hauv ntau cov kab mob hauv lub cev thaum lub endothelium yog cov ntaub so ntswg uas kab. sab hauv ntawm cov hlab ntsha thiab lymphatic hlab ntsha.
Ib cov ntaub so ntswg yog ib pab pawg ntawm lub cev sib txuas ntawm cov hlwb thiab cov khoom sib txuas ua ke uas tshwj xeeb rau cov haujlwm tshwj xeeb. Raws li lawv cov qauv thiab kev ua haujlwm, muaj plaub yam tseem ceeb ntawm cov ntaub so ntswg hauv lub cev tsiaj xws li cov ntaub so ntswg epithelial, cov ntaub so ntswg, cov nqaij mos thiab cov hlab ntsha. Cov ntaub so ntswg epithelial yog npog tag nrho cov sab nraud thiab sab hauv lub cev. Yog li ntawd, nws kab tag nrho sab nraud ntawm daim tawv nqaij, kab noj hniav thiab lumens nrog rau sab nraud thiab sab hauv ntawm cov hlab ntsha.
Ntxiv mus, lawv kuj pab lub exocrine ua haujlwm los ntawm kev tsim cov qog. Sab nraud epithelium hu ua exothelium; Nws yog lub epithelium uas npog daim tawv nqaij thiab lub cev hauv ob sab phlu. Kuj tseem muaj ob hom subtypes ntawm epithelium: mesoderm uas kab hauv kab noj hniav thiab lumens thiab mesothelium uas npog cov hlab ntsha thiab lub plawv chamber. Li no, qhov tseem ceeb ntawm endothelium yog ib feem ntawm cov ntaub so ntswg epithelial uas pab lub cev tiv thaiv nws tus kheej los ntawm kev puas tsuaj.
YEpihelium yog dab tsi?
Epithelium yog cov ntaub so ntswg uas kab rau sab nrauv ntawm lub cev thiab cov hlab ntsha thiab sab hauv ntawm cov kab noj hniav ntawm lub cev. Tej zaum nws yuav muaj ib lossis ntau txheej txheej ntawm tes uas tau ntim zoo thiab npaj. Muaj peb qhov sib txawv ntawm cov hlwb epithelial xws li squamous, columnar, thiab cuboidal.
Daim duab 01: Epithelium
Cov ntaub so ntswg tiag tiag muaj qhov ectodermal thiab endodermal embryonic keeb kwm. Cov ntaub so ntswg no yog avascular li no cov ntaub so ntswg sib txuas muab nws nrog cov khoom noj khoom haus thiab lub zog los ntawm kev yooj yim diffusion. Yog li ntawd, cov ntshav thiab lymph hlab ntsha thiab cov hlab ntsha xaus perforate lub basal membrane ntawm lub epithelium rau kev nkag siab. Cov no muab lub luag haujlwm ntawm kev tiv thaiv los ntawm kev puas tsuaj rau lub cev thiab cov kab mob microbial, secretary muaj nuj nqi ntawm enzymes, cov tshuaj hormones thiab lubricating kua los ntawm glandular epithelium thiab sensory muaj nuj nqi los ntawm cov hlab ntsha xaus.
Ntxiv mus, lub epidermis yog ib qho ntawm cov ntaub so ntswg uas npog peb cov tawv nqaij. Kev zais cia, xaiv kev nqus, kev tiv thaiv, kev thauj mus los ntawm cov cellular thiab kev hnov qab yog ob peb lub luag haujlwm ntawm cov ntaub so ntswg epithelial.
YEndothelium yog dab tsi?
Endothelium yog ib hom tshwj xeeb ntawm epithelium pom nyob rau hauv cov hlab ntsha ntawm cov ntshav thiab lymphatic hlab ntsha. Tsis tas li ntawd, nws kab lub plawv kab noj hniav. Tsis tas li ntawd, cov ntaub so ntswg no muaj ib qho embryonic mesodermal keeb kwm. Nws feem ntau pab ua kom cov kua dej ntws zoo rau ntawm nws qhov chaw. Nws tsim cov cell flattened adhered mus rau lub basal membrane nrog elastin fibers khiav los ntawm nws. Yog li ntawd, qhov no muab cov endothelium ib tug distensible zoo thiab muaj peev xwm ua kom haum raws li cov fluctuating flow.
Daim duab 02: Endothelium
Ib yam li ntawd, cov hlwb endothelial tsim ib daim ntawv zoo li qhov thaiv kom tswj kev nkag ntawm cov khoom siv sab nraud, cov kab mob thiab cov co toxins, nrog rau cov kua dej ntws hauv thiab tawm ntawm cov hlab ntsha. Lawv yog cov rhiab heev rau cov ntshav siab thiab tso cov vasodilators xws li prostacylin thiab Nitric oxide teb rau cov ntshav siab. Yog li ntawd, thaum muaj kev puas tsuaj rau cov hlab ntsha, endothelium secrets thromboplastin; Qhov no pab cov ntshav coagulation thiab teb rau cytokinase kom nce permeability rau cov qe ntshav dawb.
Dab tsi zoo sib xws ntawm Epithelium thiab Endothelium?
- Epithelium thiab Endothelium kab lub cev nto.
- Ob daim ntaub tiv thaiv lub cev thiab lub cev.
- Tsis tas li ntawd, lawv koom nrog kev zais cia thiab kev hnov lus ua haujlwm.
- Kuj, ob leeg muaj peev xwm ua tau zoo thiab kho tau zoo.
Qhov txawv ntawm Epithelium thiab Endothelium yog dab tsi?
Cov ntaub so ntswg epithelial kab sab nrauv ntawm cov kabmob thiab cov hlab ntsha thoob plaws hauv lub cev, nrog rau cov kab noj hniav sab hauv ntawm ntau lub cev. Ntawm qhov tod tes, endothelium yog hais txog cov hlwb uas nyob rau sab hauv ntawm cov hlab ntsha thiab cov hlab ntsha lymphatic. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm epithelium thiab endothelium. Txawm li cas los xij, endothelium yog cov ntaub so ntswg tshwj xeeb uas tau hloov kho rau kab sab hauv ntawm cov ntshav thiab cov hlab ntsha.
Ntxiv mus, lwm qhov sib txawv ntawm epithelium thiab endothelium yog tias lub epithelium yuav muaj ib txheej cell lossis ntau txheej cell. Tab sis, endothelium muaj ib txheej cell. Tsis tas li ntawd, epithelium yog ectodermal lossis endodermal keeb kwm thaum lub endothelium yog mesodermal keeb kwm.
Cov duab hauv qab no sawv cev rau cov ntsiab lus ntxiv ntawm qhov sib txawv ntawm epithelium thiab endothelium piv.
Summary – Epithelium vs Endothelium
Epithelium thiab endothelium yog ob hom ntaub so ntswg uas kab sab nrauv ntawm lub cev, qhov chaw ntawm lub cev, cov hlab ntsha thiab cov hlab ntsha lymphatic. Summary qhov txawv ntawm epithelium thiab endothelium; lub epithelium kab cov txheej txheem ntawm lub cev thiab cov hlab ntsha thiab sab hauv ntawm kab noj hniav nyob rau hauv lub cev. Ntawm qhov tod tes, endothelium kab rau sab hauv ntawm cov hlab ntsha thiab cov hlab ntsha lymphatic. Tsis tas li ntawd, epithelium tuaj yeem muaj ntau txheej cell thaum endothelium tsuas muaj ib txheej cell. Ntxiv mus, epithelium muaj ectodermal thiab endodermal keeb kwm thaum lub endothelium muaj mesodermal keeb kwm. Ob leeg epithelium thiab endothelium ua tiav cov haujlwm zoo sib xws xws li kev zais cia, kev tiv thaiv thiab kev hnov mob.
