Iqumrhu ciliary (umzimba ciliary): isakhiwo kunye nomsebenzi. amehlo Driving

Choroid elinoxanduva yokuhlala, ukulungelelaniswa, kunye nokutya semehlo - siyinxalenye ebaluleke kakhulu isakhiwo lweliso lakho. It iqulathe iindawo eziliqela, enye yazo ciliary (ciliary) emzimbeni. Le nto ndiyibhalayo ezininzi kuThixo kwimikhumbi kunye neeseli, isakhiwo apho uphawu izihlunu egudileyo.

Ezi seli zilungiselelwe ngokwemaleko, nganye eneyazo indlela yayo. Oku kuqinisekisa ukusebenza kakuhle umzimba ciliary, nto leyo ukugcina kuhlale kwimicu yayo izihlunu kunye nokuqinisekisa amandla iliso ukuba bajolise kwi imigama ezahlukeneyo (yokuhlala). Omnye umsebenzi obalulekileyo imfundo luthathwa uzinzise nokugcina uxinzelelo efunekayo ngaphakathi lweliso lakho.

Ubume komzimba iliso

Ngoko ke yintoni na ebizwa ngokuba yinxalenye choroid, yaye ziziphi imisebenzi yayo? Ukuze uqonde, kufuneka ucinge ulwakhiwo iliso. Anatomy eyahlula organ 4 amacandelo aphambili ebonwayo:

1. Inxalenye peripheral, ebizwa basajongwe (oko kuquka lweliso lakho ngqo, abasemagunyeni yokhuseleko iliso, amalungu ayamileyo kunye nenkqubo dystrophy unoxanduva intshukumo lweliso lakho).
2. Pathways ebandakanywa luvo optic, kwisiphambuka kunye nendlela.
3. amaziko ezibonwayo subcortex.
4. La maziko eliphezulu ezibonwayo, ezo ingabekwa Ezomva neuron.

Yeso - sisixhobo inzima kakhulu enombala engqina kwisazobe ngezantsi iliso.

Umsebenzi ophambili we umzimba kuthiwa ukudluliselwa bathembekileyo umfanekiso luvo optic. Kwaye ibandakanya onke amacandelo lweliso lakho:

• inwebu;
• egumbini sobuKristu;
• iris;
• umfundi;
• lens;
• ezihlekisayo vitreous ;
• retina;
• sclera;
• choroid (enyanisweni, inxalenye ke umzimba ciliary iso).

Kubhaliwe ikhona, njengoko kuboniswa umzobo phakathi sclera, iris kunye retina.

Iqumrhu ciliary: isakhiwo kunye nokusebenza

Ukusuka kwindawo Ngenxa komzimba ochazwe yinxalenye yeso - figure thunzi evaliweyo emva iris, a amehlo iqokobhe scleral. Oku, ngokuzenzekelayo, akasivumeli uviwo ngqo umzimba ciliary.

Xa kuqwalaselwa sikhokelo noshowo yemfundo, izakhi zayo zombini zingahlukaniswa: i ciliary kwaye iflethi.

• Eza kuqala sisondele ekupheleni iiseyile, yaye ububanzi bayo ngeenxa 4 mm.
• Okwesibini, ciliary, ububanzi obukhulu ukuya kwi-2 mm. Kuba phezu kwaso kukho iinkqubo ezizodwa (ciliary okanye ciliary), nto leyo kunye zenza isithsaba ciliary. Bona abachaphazeleka ngqo kulo ekubunjweni kulwelo ngaphakathi iliso. Oku kwenzeka ngenxa yokuba igazi ukuhluza ukuba nobuninzi kwemithambo yegazi engena ngokoqobo ngalinye iinkqubo zokuba Ngokungalindelekanga, imilo ipleyiti-like.

Ukuqwalasela umzimba ciliary kwi kwinqanaba zeselula, sinako ukubona ukuba iqulathe lamanqanaba ezimbini mesodermal kunye neuroectodermal. Isakhiwo iqulathe iintlobo ezimbini zokuqala yezihlunu - nokuqina kwemisipha. Kodwa neuroectodermal ayiphelelanga nje kuphela kwiiseli epithelial, ubukho apho kungenxa ukusasazeka yokugqibela ngomaleko kwiretina.

Kubonakala ukuba uhlobo ikeyiki sekhombuya, oomaleko zicwangciswe ngolu hlobo lulandelayo (ukusuka anzongonzongo)

• umaleko kwemisipha;
• umaleko yegazi;
• kwesakhiwo ndizayo;
• epithelium mbala;
• ngaphandle epithelium layer;
• inwebu ngokwahlukana lwangaphakathi.

Okulandelayo, siza kuxubusha iinkalo eziphambili umzimba ciliary, ezibandakanya idayagramu amehlo.

umaleko kwemisipha

Lo maleko luphawulwa izihlunu eziliqela, ehamba kumacala ahlukeneyo: longitudinal, iphiramidi ebonisa unxibelelwano kunye setyhula. Imicu kwemisipha Longitudinally ezahlukeneyo ekuthiwa Brucke izihlunu, nokuba yinxalenye nwebu engaphandle. Ngezantsi kubo radially ngqo kwezihlunu ivanov. Avale ke circularly ngqo kwezihlunu Mueller.

Eyona njongo iphambili maleko ngamnye ukuba bathathe inxaxheba kwinkqubo ubuchule iliso ukuba asuse embonweni imigama ezahlukeneyo (yokuhlala). Oku kwenzeka ngolu hlobo lulandelayo. Inxalenye zombilini ciliary inxibelelane ngaphandle lens (philisi wayo) nge ibhanti ciliary kuqulethe nobuninzi imicu thinnest. Injongo yale sakhiwo ukulungisa ilens endaweni, nokuncedisa umsipha ciliary ngexesha iinkqubo accommodative.

Le Imicu umbhinqo ciliary ebizwa zonulyarnymi nangoku zohlulwa ngokwendidi ezimbini: ngaphambili nangesemva. Eyokuqala eziqhotyoshelwe kule ndawo philisi lens ethandwa sobuKristu, uphinde okwesibini sentshinyela kwaye ngokufanelekileyo, ngasemva. Ngenxa ngeziqu zabo ukucuthwa esihlunwini ciliary sisasazwa lens iqokobhe, kwaye iba ngakumbi ajikelezayo, okanye ngaphezulu elongate njengoko inkqubo ngokugxila iliso kwi kumgama othile.

umaleko olujikeleza

Ukwakhiwa kwale maleko ayahlukanga lukhulu isakhiwo choroid, ukuqhubeka bemveliso. Umaleko Ukwakheka semithambo ibandakanya ubukhulu becala imithambo ezohlukeneyo ngobukhulu. Oku kungenxa yokuba inxalenye enkulu kwemithambo iliso kufuphi choroid, yaye, Isimanga ngokwaneleyo, emzimbeni ciliary, kodwa inxalenye dystrophy. Kwakuvela izitya ezincinane esimbaxa kwaye ufake choroid.

kwesakhiwo ndizayo

Ukuqhubekeka kwe choroid kwaye lo maleko. Kwi kwinxalenye engaphakathi igutyungelwe iintlobo ezimbini iiseli epithelial: amelanotic kunye ebala. Ezi ntlobo ze Iiseli nto ngaphezu kokuba non-nokusebenza retina. Emva kubo inwebu umda ukuba nje kuphela umaleko lokugqibela umzimba ciliary, kodwa eyahlula ukusuka uburharha vitreous.

Indima komzimba komzimba ciliary

imisebenzi emininzi olusisiseko umzimba ciliary kungathiwa:

• Ukuthatha inxaxheba yokuhlala, kunye ukukwazi ukutshintsha ukumila philisi lens ngokusebenzisa umaleko kwezihlunu umzimba ciliary. yokuhlala yi hlengahlengiso ezichanekileyo kwisithuba Diopters-5.
• Ukubonelela inani elaneleyo kolwelo intraocular, ngenxa yokuba umzimba ciliary liquka inani elikhulu kwimikhumbi yoko,, kukho igazi elungileyo. Kamva, esebenzisa eli ulwelo kufuneka ngaxa ethile uxinzelelo kwamanye amacandelo lweliso lakho.
• Ukugcina uxinzelelo eyiyo ngaphakathi iliso, leyo yenye yeemeko ukuba ndikuhlangule mnandi, umbono ocacileyo.
• olujikeleza ebandakanyekileyo ekuqinisekiseni nangoncedo ciliary umzimba, uyayondla kunye retina.
• umzimba Ciliary uba nenkxaso iris.

Pathology umzimba ciliary

Xa amayeza, abelwe isifo, oko kuxhomekeke ekubeni umzimba ciliary:

• Glaucoma. Kule ukugula ukuphazamiseka kuvuselele phakathi kulwelo intraocular kuhlanganiswa kunye nencindi yayo.
• Iridocyclitis. Lubonakala kukuvela iinkqubo ukudumba emzimbeni ciliary.
• Imadlana uxinzelelo ngaphakathi iliso, ngokunciphisa umthamo amanzi kuyo. Oku kunokukhokelela iindumbisa esicwangciswe ngayo epithelium.
• Yamathumba emzimbeni ciliary. Kwezinye iimeko, ukuze babe onganeno.
• ezimbi Various iMbonakalo-ngqo yoBume.

Xa uphawu lokuqala ingxaki kuyimfuneko Kwathi uviwo okhethekileyo, uvumela ukubona umzimba ciliary lwalo, ukuba ufumanise ukuba yintoni iinkqubo lwezidumbu kuqale, babaphatha xa kuyimfuneko.

ngenxa

UPawulos, kuyimfuneko ukuba kuthi kwakhona ukuba umzimba ciliary, ukuba yinxalenye choroid, linoxanduva eziliqela imisebenzi ebalulekileyo phakathi lweliso lakho. Phakathi kwabo - ukuba kuqheleke uxinzelelo ngaphakathi iliso nokugcina imali yakhe, kuyondelelaniswe kolwelo intraocular, nokugcinwa kwegazi abaqhelekileyo kwi esiqwini ajikelezileyo, kakade, ukubandakanyeka kwinkqubo ye yokuhlala. Umntu kufuneka akhumbule ukuba izifo umzimba ciliary uya kubonakala phezu nemeko ngokubanzi umntu.