A ciliary jiki (ciliary jiki): sifa da aiki. tuki idanu

Choroid wanda yake da alhakin masauki, karbuwa da kuma retinal abinci - mai da muhimmanci sosai ɓangare na tsarin na eyeball. Ya kunshi da dama sassa, daya daga wanda ke ciliary (ciliary) jiki. Yana da aka hada da wani jam'i na tasoshin da kuma Kwayoyin, tsarin wanda shi ne halayyar m tsoka.

Wadannan Kwayoyin suna shirya a yadudduka, kowanne daga abin na da shugabanci. Wannan tsiraru da tabbatar da ta dace aiki na ciliary jiki, wanda shi ne ya kula da ci gaba da wadata na da kansa tsoka zaruruwa da kuma tabbatar da damar da ido zuwa mayar da hankali a daban-daban nisa (masauki). Wani muhimmin aiki na ilimi da aka dauke su dattako da kuma kula da da ake so matsa lamba a cikin eyeball.

A tsarin da ido haltta

To, abin da yake a kira ɓangare na choroid, da kuma abin da suke ta ayyuka? Don fahimta, kana bukatar a yi la'akari da tsarin da ido. Anatomy bambanta da na gani Gabar 4 babban aka gyara:

1. A gefe part, kira har yanzu ya gane (shi ya hada kai tsaye eyeball, ido kariya hukumomi, ƙarƙashin gabobin da kuma murdede tsarin ne alhakin da motsi na da eyeball).
2. Tafarkin da ya kunshi da na gani jijiya, mahada da kuma hanya.
3. Kayayyakin cibiyoyin a cikin subcortex.
4. A mafi girma na gani cibiyoyin, wanda aka located a raya na cerebral bawo.

A eyeball - ne mai matukar rikitarwa Tantancewar na'urar da cewa ya tabbatar da zane a kasa da ido.

Babban aiki na jiki da ake kira da aminci watsa daga cikin image da na gani jijiya. Kuma shi ya shafi dukkan abubuwan da eyeball:

• cornea.
• da agara masallaci
• Iris.
• da almajiri.
• ruwan tabarau.
• vitreous mutumci .
• akan tantanin ido.
• sclera.
• choroid (a gaskiya, kashi na shi ne ciliary jikin ido).

An located, kamar yadda aka nuna ta hanyar zane tsakanin sclera, Iris da ido duka.

A ciliary jiki: sifa da aiki

Daga cikin ra'ayi na Anatomy bayyana ɓangare na eyeball - rufaffiyar annular adadi bayan da Iris, a scleral harsashi idanu. Irin wannan tsari, ba zato ba tsammani, ba da damar a kai tsaye jarrabawa na ciliary jiki.

La'akari da tsarin tsarin na ilimi, ta biyu aka gyara za a iya bambanta: da ciliary da lebur.

• Da farko ya zo kusa da gefen da kaya, da kuma ta nisa ne a kusa da 4 mm.
• A na biyu, ciliary, a kalla nisa ne har zuwa 2 mm. Shi ne a kan shi akwai na musamman matakai (ciliary ko ciliary), wanda tare dokoki da ciliary kambi. Suna tsaye da hannu a cikin samuwar ruwa a ciki da ido. Wannan ya faru saboda da jini tacewa a cikin jam'i na jini cewa, shiga a zahiri kowane daga matakai da ciwon zato ba tsammani, farantin-kamar siffar.

Idan akai la'akari da ciliary jiki a salon salula matakin, za mu iya ganin cewa shi kunshi biyu yadudduka na mesodermal da neuroectodermal. A tsarin kunshi da farko iri biyu nama - connective kuma murdede. Amma neuroectodermal iyakance zuwa da ciwon kawai epithelial Kwayoyin, gaban wanda yake saboda da baza na karshen da wata Layer na akan tantanin ido.

Sai dai itace mai irin mai lebur cake, yadudduka da aka shirya kamar haka (daga zurfin)

• murdede Layer.
• jijiyoyin bugun gini Layer.
• ginshiki membrane.
• pigment epithelium.
• ba tare da pigment epithelium Layer.
• ciki rabuwa membrane.

Gaba, za mu tattauna babban aka gyara daga cikin ciliary jiki, wanda ya hada da ido zane.

murdede Layer

Wannan Layer ne halin da dama tsokoki, da tafiya a cikin daban-daban kwatance: tsaye, radial kuma madauwari. Longitudinally daban-daban tsoka zaruruwa kira Brucke tsokoki, da kuma kasancewa wani bangare na cikin matsanancin Layer. Kasa su suna radially directed tsoka Ivanov. Kuma ya rufe suna circularly directed tsoka Mueller.

Manufar kowane Layer ne su shiga a cikin tsari na ido ta ikon share hangen nesa a daban-daban nisa (masauki). Wannan na faruwa kamar haka. A ciki na ciliary jiki na Magana da waje da ruwan tabarau (ta kwantena) via ciliary bel kunshi wani jam'i na thinnest zaruruwa. The abu na wannan tsarin shi ne ya gyara ruwan tabarau a matsayi, da kuma taimako da ciliary tsoka a lokacin rungumar tafiyar matakai.

A zaruruwa na ciliary abin ɗamara kira zonulyarnymi har yanzu kasu iri biyu: da gaba da kuma raya. A farko a haɗe zuwa Equatorial kuma agara kwantena ruwan tabarau yankin da kuma na biyu da Equatorial kuma daidai da, raya. Saboda su tashin hankali da kuma shakatawa na ciliary tsoka yana daukar kwayar cutar ruwan tabarau harsashi, kuma ta zama wani karin taso, ko fiye elongate matsayin aiwatar da mayar da hankali da ido a wani nesa.

jijiyoyin bugun gini Layer

A tsarin wannan Layer ba ya bambanta da yawa daga cikin tsarin da choroid, da ci gaba da abin da ya. A abun da ke ciki jijiyoyin bugun gini Layer hada da mafi yawa jijiyoyinmu daga daban-daban masu girma dabam. Wannan shi ne saboda da cewa babban ɓangare na ido jijiya dake kusa da choroid, kuma, Oddly isa, a cikin ciliary jiki, amma a cikin murdede part. Shi ne daga cikin kananan jijiya tasoshin da kuma shigar da choroid.

ginshiki membrane

A ci gaba da choroid kuma shi ne wannan Layer. A ciki part aka rufe da iri biyu epithelial Kwayoyin: amelanotic da pigment. Wadannan iri Kwayoyin bã kõme ba ne fiye da wani maras aiki na akan tantanin ido. Bãya gare su akwai wani iyakance membrane cewa ba wai kawai shi ne karshe Layer na ciliary jiki, amma kuma ya raba shi daga vitreous mutumci.

A physiological rawar da ciliary jiki

da dama na asali ayyuka na ciliary jiki za a iya gano:

• Saka hannu cikin masauki, tare da ikon canja siffar da ruwan tabarau kwantena ta hanyar tsoka Layer na ciliary jiki. masauki bayar da cikakken gyara a cikin 5 Diopters.
• Samar da wani isasshen yawan intraocular ruwa, saboda gaskiyar cewa ciliary jiki qunshi wani babban yawan tasoshin, saboda haka, yana da kyau jini wadata. Daga bisani, ta hanyar wannan ruwa ake bukata a wasu nufi da matsa lamba a kan sauran gyara na eyeball.
• Kasancewa ta dace matsa lamba a cikin ido, wanda shi ne daya daga cikin yanayi ya sadar kintsattse, bayyananne hangen nesa.
• jijiyoyin bugun gini tsarin da hannu a tabbatar da samar da ciliary jiki, nourishes da kuma akan tantanin ido.
• Ciliary jiki abubuwa a matsayin wani goyon baya ga Iris.

Pathology na ciliary jiki

A magani, kasaftawa da cutar, wanda shi ne batun da ciliary jiki:

• Glaucoma. A wannan rashin lafiya gaji da damuwa da ma'auni tsakanin hada intraocular ruwa da kuma ta outflow.
• Iridocyclitis. An halin bayyanar kumburi tafiyar matakai a cikin ciliary jiki.
• A rage matsa lamba a cikin ido, da rage ƙarar da ruwa a cikinta. Wannan zai iya haifar da kumburi da yadudduka na epithelium.
• Marurai a ciliary jiki. A wasu lokuta, su zama substandard.
• Daban-daban pathologies muhimmi yanayi.

A farko alamar matsala shi wajibi ne don hawa na musamman jarrabawa, da barin ganin ciliary jiki na ido, don gano abin da pathological tafiyar matakai da shi yana farawa, da kuma wulakanta idan ya cancanta.

sakamakon

Summing up, shi wajibi ne a ce sake cewa ciliary jiki, kasancewa ɓangare na choroid, shi ne alhakin da dama da muhimmanci ayyuka a cikin eyeball. Daga cikin su - da daidaita matsa lamba a cikin ido da kuma rike da balance, da kira na intraocular ruwa, tabbatarwa na al'ada jini ya kwarara a cikin kewaye da nama da kuma, ba shakka, da hannu a aiwatar da masauki. Daya ya kamata su tuna cewa ciliary jiki cututtuka za a nuna a kan janar jihar na mutum.