Maziso emarudzi akasiyana-siyana

Maziso emarudzi akasiyana-siyana masayenzi anonzi heterochromia . Ichi chiitiko chinonzi kana maziso maviri mune mumwe munhu kana mhuka ane ruvara rwakasiyana rweyris. Muvara we iris unotsanangurwa nehuwandu hwe melanin. Melanin is pigment, nemhaka yekuti bvudzi redu, ganda nemeso zvakasvibiswa. Melanin inobudiswa mumasero anokosha e-melanocytes uye inoshandiswa kudzivirira ganda kubva kumagetsi e-ultraviolet.

Zvinokonzera meso emavara akasiyana

Kuti unzwisise kuti nei kune maziso ezvisikwa zvakasiyana, zvakakosha kunzwisisa kuti ziso reziso reunhu rinowanzogadziriswa sei. Icho chinonyanya kukosha ndechokugara nhaka, kunyange zvazvo ichizviratidza mumhando dzakasiyana-siyana. Mavara mana ezvisikwa anoita mavara akasiyana-siyana emeso eziso kune vanhu pasi pose. Kana midziyo ye iris ine bluish tint, ipapo muridzi wemaziso akadaro anogona kuzvirumbidza nebhuruu, bhuruu kana grey iris.

Muchiitiko chehuwandu hunokwana hwe melanin mu iris, maziso achava mashazha kana kunyange madema (ane kuwandisa). Mifananidzo yejasi inowanikwa pamberi pezvinhu zvakabatanidzwa nekuputsa kwechiropa. Uye maziso matsvuku ari muAlubinos chete, vanhu vane kushaya melanin. Mukuwedzera kune maziso matsvuku, vanhu ava vane ganda rakachena uye bvudzi risina mvere.

Kusiyana kwakasiyana kwemavara makuru kunobatanidza muhuwandu hwakawanda hwemithunzi. Somuenzaniso, mavara matsvuku anowanikwa nokuvhenganisa yellow uye bhuruu, uye maruva paanosanganisa bhuruu nemavhu.

Heterochromia inowedzerawo munguva yekuberekwa, nekuda kwekuchinjwa mushure mekugadzirwa kweoocyte. Ingave isingafambidzwi nechirwere chipi nechipi chinokonzera uye chinetso. Asi mune dzimwe nguva, vanhu vane maziso akasiyana vanotamburawo nezvirwere zvakasiyana-siyana uye syndromes. Zvose zvinowanzoitika ndezvizvi vitiligo , Waardenburg syndrome, macular melanosis, leukemia, melanoma, nezvimwewo.

Aina ye heterochromia

Mhando dze heterochromy nenzvimbo:

1. Zvose . Muchiitiko ichi, vanhu vane ruvara rwakasiyana rwemaziso ose (rimwe bhuruu, rimwe rakasviba).
2. Sectoral . Muchiitiko ichi, mavara maviri akasiyana akabatanidzwa pane imwe iris. Kazhinji rumwe ruvara rune simba, uye rwechipiri rwuri pane rutivi rwaro muchimiro chechikamu chiduku.
3. Central . Rudzi urwu runoratidzwa nemirairo miviri kana kupfuura, imwe yadzo inotungamirira iris yose, uye imwe kana vamwe inorongedzwa nekodhi yevadzidzi.

Vadzidzisi vemaziso emavara akasiyana

Nhamba shomanana yevanhu vane heterochromia inoonekwa pasi rose. Inenge 1% yehuwandu hwevanhu vanoita sevasingazivikanwi nekuda kwemaziso akasiyana. Asi pane vanhu vese vane chiitiko ichi. Inopararira pakati pemakati, umo rimwe ziso rakagadzikana rwebhuruu, uye rechipiri rinogona kunge riri ruvara, ruvara kana ruvara rwemaruva. Pakati pemarudzi emakati, heterochromia inowanzowanikwa mumarudzi eAngora, Sezvimwewo dzimwe dzinza nemucheka mutsvuku. Pakati pembwa, heterochromia inowanzoonekwa muHusky Husky, Border Collie, Australian Shepherd. Mabhiza, nyuchi nemombe zvinogonawo kuva ne heterochromia, izvo zvisingabatsiri hutano hwavo nenzira ipi zvayo.

Ndinofanira kuita chimwe chinhu here?

Heterochromia haisi pacheche inotakura kusagadzikana kwepanyama kune munhu, rega mhuka. Pamusoro pehutano hwehuono, iyo hainawo kuchinja. Kakawanda, vanhu vanotambura nemagetsi emavara ane mavara vanoshandisa mavarai ekugadzirisa maitiro avo. Kunze kweunhu hwehuunhu hwakadaro vanhu vanonzi vakatendeseka, kutambura, kuvimbika, rupo, kukakavara uye zvimwe zvekuda. Vanowana zvakaoma kuti vasave pakati pekucherechedza, uye ivo vanonyadzisa.