Hoto: Cikakken Sashe na Giciye na Idon Dan Adam Mai Mai da Hankali Kan Macula
Buga: 21 Satumba, 2026 da 07:45:52 UTC
Zane mai girman gaske na idon ɗan adam a cikin sashe mai faɗi, wanda ke nuna macula da fovea. Hoton yana nuna cornea, ruwan tabarau, retina, choroid, da jijiyar gani dalla-dalla, yana ba da hangen nesa na ilimi game da yanayin ido da sarrafa gani.
Detailed Cross-Section of the Human Eye Focusing on the Macula
Sigar da ake da ita ta wannan hoton
Fayilolin hotunan da ake da su don saukewa a ƙasa ba su da matsewa kuma suna da ƙuduri mafi girma - kuma sakamakon haka, inganci mafi girma - fiye da hotunan da aka saka a cikin labarai da shafuka akan wannan gidan yanar gizon, waɗanda aka fi inganta su don girman fayil don rage yawan amfani da bandwidth.
Girman yau da kullun (1,536 x 1,024)
Babban girma (3,072 x 2,048)
Girma mai girma sosai (4,608 x 3,072)
Girman da ya fi girma (6,144 x 4,096)
Girman barkwanci mai girma (1,048,576 x 699,051)
- Har yanzu ana lodawa... ;-)
Bayanin Hoto
Wannan hoton yana gabatar da cikakken bayani, mai ƙuduri mai girma na hoton idon ɗan adam, yana mai jaddada macula—yankin da ke da alhakin hangen nesa na tsakiya da haske. An tsara tsarin a yanayin ƙasa, yana ba da damar cikakken kallon yanayin jikin ido daga cornea a gaba zuwa jijiyar gani a baya. Mafi girman laka, sclera, yana samar da farin harsashi mai kariya a kusa da ido, yayin da cornea mai haske ke lanƙwasa a gaba, yana barin haske ya shiga. Bayan cornea akwai ɗakin gaba, cike da barkwanci mai ruwa, wani ruwa mai tsabta wanda ke kula da matsin lamba a cikin ido kuma yana ciyar da kyallen cornea da ruwan tabarau. Iris, wani zagaye na kyallen tsoka, yana kewaye ɗalibi kuma yana daidaita adadin hasken da ke shiga ido. Ɗalibi yana bayyana a matsayin babban ramin tsakiya mai duhu, yana daidaita diamitarsa don mayar da martani ga ƙarfin haske.
Nan da nan bayan ɗan ƙaramin ido akwai ruwan tabarau mai lu'ulu'u, wanda aka nuna a matsayin tsari mai haske, mai siffar biconvex wanda aka rataye ta hanyar zare mai kyau na zonular. Ruwan tabarau yana mai da hankali kan hasken da ke shigowa zuwa retina, kuma lanƙwasarsa yana canzawa don dacewa da hangen nesa na kusa da na nesa. Jikin vitreous yana mamaye babban ramin tsakiya na ido, cike da iskar vitreous - wani abu mai kama da gel wanda ke kula da siffar zagaye da hasken ido. A kewaye da ɗakin vitreous, retina tana layi a saman ciki, wanda aka nuna a nan a matsayin tsari mai matakai da yawa tare da tsarin ƙwayoyin halitta mai rikitarwa.
An kwatanta saman layin retina, wato epithelium na launin retina (RPE), a matsayin wani yanki mai launin ruwan kasa mai duhu wanda ke shan haske da ke ɓacewa kuma yana tallafawa metabolism na photoreceptor. A samansa, layin photoreceptor ya ƙunshi sanduna da mazugi - ƙwayoyin ji da ke da alhakin canza haske zuwa siginar jijiyoyi. Mazugi, waɗanda aka tattara a cikin macula musamman a cikin fovea, an nuna su a matsayin gajerun ƙwayoyin halitta masu tauri a cikin launuka na ja, lemu, da kore, suna wakiltar yadda suke ji ga raƙuman haske daban-daban. Sandunan, waɗanda suka fi yawa a yankunan da ke kewaye, suna bayyana a matsayin ƙwayoyin halitta masu tsayi masu launin shunayya waɗanda aka ƙware don hangen nesa mai ƙarancin haske. Waɗannan masu karɓar photoreceptor suna haɗuwa da ƙwayoyin bipolar, waɗanda aka nuna a matsayin siririn ƙwayoyin halitta kore da rawaya waɗanda ke isar da sigina ga ƙwayoyin ganglion. Kwayoyin ganglion, waɗanda suka fi girma da launin lemu, suna samar da layin retina na ciki, axons ɗinsu suna taruwa don ƙirƙirar jijiya ta gani, wacce ke aika bayanai na gani zuwa kwakwalwa.
Macula, wanda yake kusa da tsakiyar retina, an haskaka shi da launuka masu dumi na rawaya da lemu, wanda ke nuna yawan mazurarin da yake da shi da kuma rawar da yake takawa wajen fahimtar cikakkun bayanai. A cikin macula akwai fovea, wani ƙaramin rami da ke nuna yawan mazurarin da rashin sanduna. Wannan yanki shine wurin da ake iya ganin gani mai kaifi, wanda ke ba da damar ayyuka kamar karatu da gane fuskoki. Zane-zanen sun yi wa macula da fovea alama a sarari, tare da kibiyoyi suna nuna matsayinsu. An nuna yadudduka na retinal da ke kewaye da su tare da daidaiton launi da rubutu, suna jaddada sarkakiyar hanyoyin jijiyoyi da ke cikin gani.
Ƙarƙashin retina akwai choroid, wani layin jijiyoyin jini da aka samar a cikin launuka masu zurfi ja, wanda ke wakiltar wadataccen jininsa wanda ke ciyar da yadudduka na retina na waje. An yi wa capillaries na choroid da nama mai haɗin kai inuwa mai zurfi don isar da zurfi da gaskiyar halittu. Sclera da ke ƙarƙashin choroid yana bayyana a matsayin wani kauri, fari mai fiber Layer, yana ba da daidaito da kariya. A gefen dama, jijiyar gani tana fitowa a matsayin tarin zare masu launin rawaya masu kauri waɗanda ke shimfiɗa zuwa kwakwalwa, suna nuna watsa siginar gani.
Haske a cikin zane yana daidaitacce kuma daidaitacce, yana tabbatar da haske a duk fasalulluka na jiki. Paletin launuka yana haɗa launuka masu kyau da bambancin ilimi - rawaya mai ɗumi da lemu don macula, shuɗi mai sanyi da shunayya don tsarin gaba, da ja mai zurfi don kyallen jijiyoyin jini. Tsarin gabaɗaya yana cimma daidaiton kimiyya da kyawun gani, wanda hakan ya sa ya dace da ilimin likitanci, nassoshi na likitan ido, da sadarwa ta kimiyyar gani.
Mayar da hankali kan hoton kan macula da fovea ya nuna muhimmancinsu a ganin ɗan adam. Tsarin da ke kewaye da shi—cornea, ruwan tabarau, jikin vitreous, retina, choroid, da jijiyar gani—an shirya su cikin jituwa don kwatanta hanyar gani ta ido. Wannan hoton yana ɗaukar hulɗa mai laushi tsakanin watsa haske, kunna masu karɓar hoto, da sarrafa jijiyoyi, yana ba masu kallo fahimtar yadda ido ke canza haske zuwa gani. Sakamakon shine cikakken labarin gani na jikin ido, wanda aka yi shi da daidaito, haske, da zurfi.
Hoton yana da alaƙa da: Loquat: 'Ya'yan itacen zaki cike da fa'idodi na gaske ga lafiya