Epithelial hlwb

Monolayer kab epithelial cov ntaub so ntswg muaj peev xwm muaj xws li epithelial hlwb ntawm ntau yam nrhiav. Yog li, lawv yuav ua tau prismatic, nyhav, tiaj tus.

Endothelium thiab mesothelium nyob rau hauv lub cev yog ib tug ib leeg-txheej tiaj ntaub.

Mesothelium them nrog serous membrane (peritoneum, pleura, pericardium). Epithelial hlwb ntawm lub mesothelium muaj jagged sawv thiab ib tug polygonal zoo. Los ntawm mesothelium nqa haum thiab feem ntawm serous kua. Nws du nto muab ib qho yooj yim zawv zawg ntawm lub hauv nruab nrog cev. Mesothelia kuj tiv thaiv adhesion tsim ntawm lub plab los sis thoracic kabmob, kev loj hlob muaj peev xwm tshwm sim thaum lub sij hawm nws ib pib lis nrog.

Endothelium-lined lymphatic thiab cov hlab ntsha. Nws yog tiaj epithelial hlwb (endothelial hlwb). Lawv tsim ib txheej rau ib tug basal membrane txheej. Vascular endothelium nyob rau ntawm tus ciam nrog rau cov ntshav los yog cov qog thiab koom nyob rau hauv cov kev pauv ntawm gases thiab tshuaj ntawm cov hlab ntsha thiab lwm yam ntaub so ntswg. Nws raug mob ntxias ib tug kev hloov nyob rau hauv lub vascular ntshav txaus thiab tsim los ntawm cov ntshav txhaws nyob rau hauv lub lumen.

Part raum tubules lined nrog ib txheej ntawm cuboidal epithelium. Nws muab suckback (reabsorption) ntawm tej yam tshuaj nyob rau hauv cov ntshav los ntawm tus thawj zis.

Ntaub so ntswg, xws li prismatic epithelial hlwb yam ntxwv ntawm qhov nruab nrab ntawm lub digestive department. Lawv lined nrog ib puab nto ntawm lub pais plab thiab cov hnyuv, ua ib co hepatic thiab pancreatic ducts, gallbladder. epithelial hlwb khi desmosomes, slotted kev sib txuas lus tebchaw rau lub xauv ntaus, tuab trailing tebchaw. Vim rau qhov no, cov kis tsis txeem cov ntaub so ntswg thiab cov hnyuv txheem ntawm lub pais plab kab noj hniav.

Airways yog hlua nrog multi-kab epithelium, uas tsis yog-ciliated thiab muaj ntau yam ntaub ntawv thiab ua ib tug ntau yam ntawm cell muaj nuj nqi.

Cornea sab nraum cov hlab pas thiab lub qhov ncauj them nrog multilayer tiaj daim ntaub. Qhov no epithelium comprises peb khaubncaws sab nraud povtseg: ib tug ca (ces dag), intermediate thiab basal (pos).

Cornified multilayer tiaj daim ntaub them daim tawv nqaij. Yog li, ib tug cutaneous epidermis. Muaj keratinization txheej txheem yog ua, uas yog txuam nrog rau cov txawv ntawm epithelial hlwb. Lub epidermis muaj ob peb khaubncaws sab nraud povtseg. Qhov no muaj xws li muaj pos, basal stratum, granular cell txheej thiab ci iab. Tshwj xeeb yog cov lus hais hauv peb lub khaubncaws sab nraud povtseg ntawm daim tawv nqaij ntawm lub xib teg thiab qab xib taws.

Transitional epithelium (multilayer) yog raug rau mocheotvedeniya lub cev (lub raum lub plab mog, zais zis, ureter). Ntawm no muaj ob peb khaubncaws sab nraud povtseg: ces, intermediate, basal txheej. Epithelial hlwb nyob rau hauv cov zis (tso zis sediment) muaj nyob yuav luag ib txwm. Cov cai no yog cov ntsiab lus ntawm tsis muaj ntau tshaj li kaum nyob rau hauv lub xub ntiag. Tus cim yog kuaj siv urinalysis.

Lub cover daim ntaub npog "ciam teb" txoj hauj lwm. Qhov no ntaub yog nyob rau hauv lub qhov tus ntawm lwm ib puag ncig, yog li nws hlwb hnav tawm thiab tuag kuj sai sai. Rov qab yog vim lub qia hlwb. Lawv muaj peev xwm faib thiab tswj nws thoob plaws hauv lub neej ntawm tus kab mob.

Epithelial cov ntaub so ntswg yog zoo innervated. Nws muaj xws li receptors (neural kaw muaj rhiab heev) nyob rau hauv loj qhov ntau.

Lub epithelium meem hauv lub ncauj tsev me nyuam thiab qhov chaw mos. Nws nce nyob rau ntawm qhov kev nce rau hauv cov ntsiab lus ntawm cov poj niam cov tshuaj hormones rau hauv lub cev. Epithelial hlwb nyob rau hauv lub smear los ntawm koj qhov chaw mos yog feem ntau tam sim no. Lawv tus xov tooj mas nws txawv nyob ntawm seb lub hormonal tshuaj, cev ntas theem. Qhaj ntawv ntawm hlwb tej zaum yuav qhia cov ntaub so ntswg Atrophy, cov tshuaj no tsis muaj peev xwm los yog ib tug dhau heev lawm ntawm cov txiv neej cov tshuaj hormones.