Umbala zazenziwe kwamehlo - ntoni na?

Njengoko usazi, amehlo kwisipili umphefumlo womntu. Oko kubo sinikela ingqalelo ekhethekileyo inkqubo zokunxibelelana nabanye abantu. Yaye abanini off-umbala amehlo ekugqibeleni Siyakubandakanya ukubukeka ezininzi kumangaliswa, ancome. Ngoko ke yintoni na - iliso umbala zazenziwe?

Ukuphendula lo mbuzo umdla into umbala liliso zazenziwe, kufuneka kuqala kukuba oko kugqiba emthunzini iris. Zonke indaba kombala, ebizwa bala lintsundu - le mali yaye yakha umbala iliso kumiselwa yimiba njengelifa. Melanin ngaphezulu emzimbeni, lo mnyama amehlo abantu.

eziphilayo luphawulwa kukungabikho sakhi, ebizwa albino amehlo ebomvu kunye nombala. Uphando lubonisa ukuba kukho umthunzi mnyama iris nguye olawulayo, echaza ubukho bakhe ebonakala ukukhanya. Ngoko ke, ihlabathi kakhulu ngakumbi abantu abantsundu-eyed. Ukwenyuka-bala lintsundu kufuneka ikhatshwe ngcembe utshintsho iliso umbala ubomi babantu. Sondela nombala ubudala babo ukuze babe ngakumbi ezimhlophe, nto leyo ehambisana kunye nokulahlekelwa elubala into ebizwa ngokuba yi-mesodermal umaleko.

Ngoko ke, njengokuba-manani zibonisa, iliso umbala zazenziwe ehlabathini - oluhlaza. Baye% 2 kuphela labemi, ubukhulu becala abemi kumantla Yurophu. Kwakhona iliso umbala zazenziwe ikhona kwi Turks and balapha. Eziphilayo zabantu zemfuza kubuphepha kuphuhliso imali encinci-bala lintsundu.

Le brown kakhulu ngokuqhelekileyo ingqalelo. Ukuba sithethe ngayo abemi belizwe lethu, malunga nesiqingatha iye hina amehlo. Brown-eyed yi ikota kubemi Russia, oluhlaza kunye nemibala ngemisonto iris uphawu 15-20% yabemi. Umbala zazenziwe kwamehlo ukuya baseRashiya kwakhona eluhlaza.

Enye iliso umbala ezinqabileyo, kwakheka ngenxa kwiDNA, oko purple. Umntwana ozalwa unxaxho enjalo, ekuzalweni kwaphela iris umthunzi eqhelekileyo: blue, angwevu okanye mdaka. Kodwa kwisithuba seenyanga ezintandathu, ethe ngcembe zatshintsha, ukufumana umbala purple. Kwincopho yale nkqubo unayo ekufikiseni, xa amehlo abe mnyama umthunzi nemfusa Violet-blowu. umbono Human ezifana ngezifo engafanelekanga impembelelo, ingeyo yegazi (abanini ezininzi amehlo umthunzi ozuba ubunzima izifo ezingemnandi kwisigaba). Ummeli ezigqame kubo edume Elizabeth Taylor.

Xa ndiqukumbela, kufanele kuqatshelwe ukuba imibala ephambili iliso bambalwa kakhulu. Ezi kungathathwa mdaka, nemisonto emsi, engwevu kunye noluhlaza. Kodwa imibala zabo baninzi, yaye ngamnye wahlukile. Ukuba sithethe ngalo engaqhelekanga eye umbala - nemfusa obomvu kunye - ke kunokuba khona ngenxa ezingaqhelekanga kwaye zithathwa kubonisa utshintsho Nedlac emzimbeni. Ngelo xesha linye i zazenziwe eye umbala - oluhlaza, ngenxa imali encinane-bala lintsundu, akanako ingqalelo nayiphi na ukutenxa kumgaqo.