Indlala lacrimal

emizimbeni lacrimal amelela iqoqo izakhiwo yokwakheka ukuthi akhiqiza izinyembezi futhi ngokweqile yabo kuhoxiswa ngalo ingaphakathi acinene. Ziyakwazi ifomu abangamawele. Ukuze afeze imisebenzi yawo maqondana indawo yokwakheka lezi zindikimba zihlukaniswe apharathasi lacrimal kanye slezosekretorny. imfihlo Khishiwe iqukethe ukubunjwa yayo enzyme, okuyinto moisturize hhayi kuphela cornea esweni, kodwa futhi ivikela ke kusukela ukuvuvukala. uketshezi Izinyembezi ngesikhathi eshaywa kwasakazwa ngokulinganayo phezu kwamanzi.

nezindlala lacrimal ukuthi secrete lwamanzi uketshezi eliqukethe ketshezi kuyinto izenzo ezinamandla elwa namagciwane njengoba lysozyme, wahlela kude amathambo orbit ngenhla emaphethelweni elingaphandle iso. Ubude yabo imayelana 2 amasentimitha, futhi babe ukufana okukhulu kuya alimondi. nezindlala lacrimal libe izingxenye ezimbili: esemkhathini (engenhla) kanye palperbalnoy (ngezansi), ahlukaniswa imisipha umsipha okuyinto Uphakamisa leso elingenhla. Ngaphezu kwalokho, kukhona nezindlala ezengeziwe lacrimal. Ngoba lezizinto ikakhulu ise conjunctiva lwaleli engenhla.

Ukuze kahle humidify yeso aludingi ezingaphezu kuka 1 ml ngosuku izinyembezi, akhiqize nezindlala ezengeziwe. Uma kungekho kwezinso, basuke kahle ukubhekana ngokuphumelelayo imisebenzi yabo. The main lacrimal nezindlala baqale umsebenzi wabo, uma kukhona ezizihluphayo ukuthi babangela anda Ukubhidliza. Lokhu kwenzeka ngaphansi isenzo ezizihluphayo ahlukahlukene, ukuxhumana umzimba angaphandle conjunctiva noma i-cornea, sebuhlungwini obunzima, ukukhanya okukhulu kakhulu ukuze aphuphuthekise, imizwa ngokweqile.

Imikhondo izinyembezi ziziphilela nzima inhlangano ezicacile zomzimba esakhiwa sebuningini izakhi. Kuyinto ngaye likhiphe uhamba uketshezi ku sac conjunctival, bese kukhishelwa endlini ingaphakathi acinene. Kusukela ukusebenza kwawo okuvamile kuncike kakhulu impilo lokhu umzimba ezibalulekile ezifana amehlo.

Amapayipi Izinyembezi amayunithi 12 elise indlala ngamunye futhi sisasebenza kuye imfihlo ngokusebenzisa izimbobo enikeziwe in the upper ijwabu leso lwaleli agelezela sac conjunctival. On onqenqemeni engaphakathi Isivalo yasenhla nemithombo yasenzansi kukhona uhlevane ezincane nge izimbobo, ababiziweyo amaphuzu lacrimal. Bahlangana lacrimal echibini uketshezi ngokweqile ngokusebenzisa kwabo wathumba imbobo izinyembezi, olubizwa nangokuthi tubules. Wabe iwela uhlobo ngalendoda - sac lacrimal, bese ku ngalo ingaphakathi acinene, lapho iyasha, moistening emoyeni elise-ke.

Ukwephulwa kwezitho lacrimal kungadalwa izinto eziningi, kuhlanganise ukuvuvukala nezindlala lacrimal. Kulokhu, uketshezi izinyembezi zingaba okuncane kakhulu futhi okuningi. Izimpawu eyinhloko lacrimal indlala nezifo kuyindlela amehlo zamanzi, umuzwa ukungezwani amehlo, ukuvuvukala leso elingenhla. Ngo ukuvuvukala acute, iziguli ubuhlungu, izifo bangabafundi.

indlala lacrimal ngeminyaka ukukhiqiza imfihlo kancane. Lokhu kuyiqiniso ikakhulukazi kwabesifazane ngesikhathi ukushintsha kwama-hormone. A ukwehla inani izinyembezi futhi Sjögren Syndrome - isifo nemvelo rheumatoid akuyona izizathu ezicacile ngokuphelele ngenxa nesenzakalo.

Ngokuvamile, uma isibalo labelwe ukukhala imfihlo ikhuphuke kakhulu. Isenzakalo esifanayo kwenzeka uma amanxeba iso, ukusha, xhumana ngemizimba angaphandle, ukucasuka, isibonelo, lapho wokuhlanza anyanisi, njll Ngale ndlela umzimba iyaphendula futhi ivikela iso. Ukuvuvukala nezindlala lacrimal ngokuvamile kwenzeka phakathi ukuthuthukiswa kwezifo ezithathelwanayo ezinjengomkhuhlane, mumps, scarlet fever. Uma ukuvuvukala indlala lacrimal kuyinto kobuhlungu futhi ihlala isikhathi eside ngokwanele, kungenzeka ukuba usola khona izifo, ezifana nesifo sofuba, kwegazi uhlelo izifo, ugcunsula kanye nabanye.