Inyama Epithelial: kwi emideni

Xa abantu bethetha ngolu hlobo amalaphu, ndikhumbula ingakumbi eluswini, nangona izicwili epithelial - oko kukuthi, e-siseko, kukho uhlobo 'emideni ". Yena bahlukana namanye amalungu, ikhoyo nokubakho ukwakhiwa yangaphakathi. Owahlukeneyo epithelial tissue, isakhiwo kunye nomsebenzi apho amaqhina oqhagamshelwano phakathi ngendlela ekhethekileyo ngohlobo ngalunye ilaphu. Malunga Ziziphi iintlobo zentetho? Funda ngaphezulu.

Eyona isici zonke iintlobo - iiseli in close contact kunye namanye, ngokufuthi ngokwemaleko, ngenxa yokuba umsebenzi umqobo yethishyu epithelial. Kwakhona, zonke iintlobo kwithishyu epithelial esifana kukuba izakhiwo ezikufutshane, ukuba basoloko zihlukaniswe kwizicwili - lokhu kuthiwa ndizayo ongaphantsi.

Xa epithelium jikelele elula (a umaleko ube mnye) kunye laminate (eziliqela). Ngako oko, isakhiwo izihlunu epithelial inokuba nomahluko kakhulu.

Simple epithelium ke atshabalalisa kancinane imilo. Olu hlobo ibizwa carcinomas. imigca Yena imiphunga, imithambo yegazi, ukuqanda intliziyo. Kwakhona, ezi Iiseli kwiingcamba aphezulu ulusu kunye isifo ngomlomo.

Asinto kunzima ukuthelekelela imilo iiseli cubic epithelial. Ezi seli zifumaneka amadlala, imibhobho, amadlala kunye tubules sezintso. Ukongeza, ukuba zenza epithelium germinal kwi zamaqanda kwabasetyhini kunye namasende zabantu.

epithelium Prismatic yinto elula sekhombuya. Iiseli akheke imivalo evuthelweyo. Eziba kwezi iiseli "ezifihliweyo" ukucuthwa inwebu kufutshane yaye kude kumphezulu. Kaloku, esiswini, ubuso zezikabani line, oko kakuhle kakhulu - kakhulu ndlongo apho ngoLwesithathu. Ezinye zezi seli ziyinxalenye amalungu yovakalelo - ivumba, incasa kunye nokuva.

epithelium Ciliated columnar uba neziqu ezimile ngokukhethekileyo ukuqinise lihlangana yakwazi ukukhuthaza into ikufutshane kubo. Bona "siphila" empumlweni kwaye ... kwi tubes kwabasetyhini, ebavumela ukuba ukukhuthaza iqanda isibeleko.

epithelium Glandular ebizwa prismatic eziquka iiseli secreting. Ngamanye amaxesha secreting iiseli ngaphezu columnar. Baphi na iiseli ukuba kubekho imfihlelo? Kuyinto iiseli epithelial izihlunu, udlule umendo zobungcali. Yaye "neengcali" zinokuba nomahluko kakhulu. Ethatha inxaxheba kwimveliso enqanda, iihomoni, ubisi, yencindi, umbilo, amafutha kunye namathe. Kakade ke, zonke ezi zinto abakwazi ukuvelisa amadlala elilodwa olunye-, amadlala ityala, eliquka iiseli ezininzi epithelial. Iseli enye ekuthiwa ziiseli engenamqheba. Ekuqaleni babebizwa enterocytes, ngenxa yokuba uninzi lwezi iiseli emathunjini amancinci. Kodwa ke kwenzeka ukuba ezisegumbini conjunctiva kwe iliso nakwinkqubo yokuphefumla, kunye imibhobho kwamadlala.

Apho iinkqubo ezikhulu ungquzulwano umngcipheko yokwenzakala, umzimba wakha epithelium esimbaxa - lowo efanayo esoloko iqulathe kwiiseli ezininzi. Sithetha ngayo ulusu kunye isifo ngomlomo. Kwi iiseli yesikhumba kumphezulu zilahlwe kuyo leeprothini multi-ngekeratini emlonyeni ngekeratini iiseli incinane, ngoko ke ulusu kwebala kunye inwebu kwiinwebu umlomo yahluke kakhulu.

umsebenzi inyama Epithelial zahlukile kakhulu. Olu luhlu lungezantsi rwxrwxrwx ngokupheleleyo.

Zikhusela. Epithelium kuthintela umonakalo, ukutsha imichiza, kokubuza umqobo kusulelo kwaye ikhusela iiseli ukusuka bha ukulahleka kwamanzi.

njengokungathi Umsebenzi: iiseli ezizodwa of epithelial ifomu inyama amalungu ukushukumisa.

umsebenzi Secretory: ichazwe ngokwenkcukacha kwicandelo le epithelium glandular.

Absorptive: ngaphakathi emathunjini amancinci ngalo epithelium le ukufunxeka kwezondlo ikhutshwa phandle.

Kukhuthaza: amadlala ukubila izithako ezingafunekiyo kwi kidney epithelium nazo ziyakwazi inxaxheba ukuhluza, kananjalo reabsorption.

Nokuhanjiswa: ngokusebenzisa epithelium obhityileyo kwi phecana sokuphefumla emzimbeni kwaye ukusuka neegesi kubusa.

Lenkawu umsebenzi: ngokuma epithelium ecoca umoya ukusuka eluthulini.

ukuxabana okwehlileyo: epithelium nemithambo kunciphisa ukuxabana phakathi udonga isitya kunye egazi.

Njengoko ubona, oluninzi lwemisebenzi, ngenxa yokuba iintlobo ezininzi. Ulwazi oluninzi malunga nale uya ukufunda iincwadi ezilungileyo histology.