Umzimba womuntu, njengazo zonke izinto eziphilayo, uhlukile amayunithi kwesakhiwo futhi zisebenza - amaseli. Nazo ngokufanayo, ngezizathu jikelele (imvelaphi, morphology, umsebenzi) ehlangana nezicubu zazo ezakhiwe futhi zonke izitho zethu, imithambo yegazi, igazi lymph. Ingxenye ekhethekile epithelium zabo, njengoba owandile umzimba futhi yenza enamathela nemisebenzi secretory. Ngakho, esekelwe isikhumba okwakhelwe kanye ulwelwesi serous, akha isakhiwo we kwangaphakathi futhi yangaphandle ndlala uketshezi. Futhi okubaluleke kakhulu, zonke imigqa izibilini imithambo yegazi (epithelium squamous). Okungukuthi, abangabantwana umngcele okungukuthi, noma kunjalo, phakathi umzimba kanye nemvelo. It eyakhelwe lokhu kudala amaseli EPITHELIAL, okuyinto nimi axhumene ngokusebenzisa ezihlukahlukene othintana intercellular: amabhande gluing kanye lokuvala, kanye ekhethekile ziboya umunwe-like we ulwelwesi - interdigitatsy. ezinqabeni zawo ne-t. N. ekuqiniseni izidakamizwa oqukethe semali asidi i-hyaluronic. Ngakho, kwakheka izingqimba okuqinile, ezivame enamathiselwe ulwelwesi engaphansi, futhi ukudla kwabo inikeza okuningi ecashile okuxekethile ezicutshini nemithambo yegazi nezinzwa. Zonke ion namandla substrates ihlolwe amaseli EPITHELIAL ngu okusheshayo ngokusebenzisa capillary mncane-ngabafaka.
Ukwahlukanisa futhi umsebenzi
Ngokwe morphology nezici kwesakhiwo ukuhlukanisa epithelium uyisicaba, cubic, cylindrical, multilayered, ciliary (ciliary) kanye indlala.
Ngakwelinye ihlangothi, zonke subtypes, ngaphandle eqenjini lokugcina yakha evamile enamathela uhlobo ngoba delimit umzimba naphakathi kusukela umzimba futhi yenziwa phakathi kwawo ukuncela kokukhwehlela. Futhi epithelium, kuhlanganise flat, ivikela zonke izingqimba ezihleli kusuka umonakalo ahlukahlukene :. Mechanical, amakhemikhali, ngokomzimba, njll Kule ndaba, ke inenani regenerator umthamo njengoba kuqhathaniswa nezinye izicubu zomzimba. ukubaluleka ikakhulukazi kakhulu esikhumbeni sayo bese ipheshana zokuphefumula, njengoba nje kuvamile namanje ngqo nabo imvelo bangaphandle. Futhi epithelium flat futhi yezindlala ulwelwesi izinhlaka pheshana emathunjini bese uhlelo urogenital, ukuvikela kusuka adhesion kanye nokwethulwa namagciwane abangela izifo, kanye ubuthi kanye ubuthi.
Indima e uphethwe
Ngoba amangqamuzana basuke njalo olusha, bese ehlutshiwe off bathumba efile zamanje ugxile umchamo noma igazi macrophage. Ngokuqondene nalokhu, epithelia flat, izinga lapho urinalysis kuyinto 1-2 e emkhakheni umbono ka-microscope, inenani zokuxilonga. Futhi uma kunqunywa amadoda iyindlala, kuba abesifazane cishe ngaso sonke isikhathi. Isizathu ukuthi isakhiwo ezahlukene ipheshana excretory: epithelium ucansi strong ngeke kukusize umchamo kuphela yesithathu engezansi urethra, futhi ebuthaka - ngisho esithweni sangasese. Ephambi kwezinduna ukuvuvukala kule pheshana urinary lemali kungandisa kakhulu, kodwa kunani zokuxilonga has a epithelium zesikhashana, okuyinto evamile ngingekho cwaningo.