![Dab tsi yog qhov ua haujlwm ntawm cov hlab ntsha hauv lub qhov muag nyuj? Dab tsi yog qhov ua haujlwm ntawm cov hlab ntsha hauv lub qhov muag nyuj?](https://i.answers-medical.com/preview/medical-health/13952716-what-is-the-function-of-the-optic-nerve-in-a-cow-eye-j.webp)
Video: Dab tsi yog qhov ua haujlwm ntawm cov hlab ntsha hauv lub qhov muag nyuj?
![Video: Dab tsi yog qhov ua haujlwm ntawm cov hlab ntsha hauv lub qhov muag nyuj? Video: Dab tsi yog qhov ua haujlwm ntawm cov hlab ntsha hauv lub qhov muag nyuj?](https://i.ytimg.com/vi/kAY06rJEJTA/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Optic paj hlwb :pab of paj hlwb bers uas xa cov ntaub ntawv los ntawm cov retina mus rau lub hlwb. Vitreous lom zem: lub tuab, ntshiab jelly uas pab muab lub pob qhov muag nws cov duab. Kev nkag siab tob: lub peev xwm los txiav txim siab npaum li cas ze lossis deb ntawm qhov khoom.
Ntxiv rau qhov no, dab tsi yog qhov haujlwm ntawm iris hauv lub qhov muag nyuj?
Cov leeg uas tswj hwm lub teeb nkag mus rau qhov muag ntau npaum li cas. Nws raug tshem tawm ntawm lub lub qhov muag thiab cov tsom iav . Ib tug nyuj lub iris yog xim av. Tib neeg irises tuaj ntau xim, nrog rau xim av, xiav, ntsuab, thiab grey.
Tsis tas li, ob txoj haujlwm ntawm lub lens ntawm lub qhov muag yog dab tsi? Los ntawm kev hloov nws duab , lub lens hloov lub focal nrug ntawm lub qhov muag. Hauv lwm lo lus, nws tsom mus rau lub teeb ci uas dhau los ntawm nws (thiab mus rau retina) txhawm rau txhawm rau tsim cov duab meej ntawm cov khoom uas tau muab tso rau ntawm ntau qhov kev ncua deb. Nws kuj ua hauj lwm ua ke nrog lub cornea kom refract, los yog khoov, lub teeb.
Kuj Paub, lub hom phiaj ntawm kev phais qhov muag nyuj yog dab tsi?
Ib qho txiaj ntsig ntawm a nyuj qhov muag yog tias los ntawm kev tshuaj xyuas lub cev lub cev ntawm kev khaws cia qhov muag , koj tuaj yeem kawm paub koj tus kheej li cas qhov muag tsim cov duab ntawm lub ntiaj teb thiab xa lawv mus rau koj lub hlwb.
Qhov sib txawv ntawm nyuj qhov muag thiab tib neeg qhov muag yog dab tsi?
pob qhov muag pom tias loj dua nyob rau hauv ib tug nyuj lub qhov muag . Lwm tus qhov txawv ntawm nyuj thiab tib neeg qhov muag yog menyuam kawm ntawv. Tib neeg muaj cov tub ntxhais kawm puag ncig, thaum nyuj 'cov tub ntxhais kawm ntawv zoo li tus hlais. Ntawm qhov tod tes, nyuj tsuas muaj plaub leeg, thiab lawv qhov muag yog txwv rau nce, nqis, sab laug thiab sab xis.
Pom zoo:
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Piav qhia: Cov hlab ntshav nqa ntshav nyob hauv siab los ntawm lub plawv mus rau cov kabmob thiab cov nqaij. Lawv cov phab ntsa feem ntau yog tuab dua li cov leeg. Capillaries yog qhov sib txuas ntawm cov hlab ntsha thiab cov leeg thiab me me heev, Cov ntaub so ntswg qee zaum pom tawm thiab rov nco qab los ntawm cov qog ntshav thiab rov qab los rau cov leeg ntshav
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Cov hlab ntsha nqa ntshav tawm ntawm lub plawv; Lub ntsiab hlab ntsha yog aorta. Capillaries nqa ntshav tawm ntawm lub cev thiab pauv cov as-ham, pov tseg, thiab oxygen nrog cov ntaub so ntswg ntawm qib cellular. Cov leeg ntshav yog cov hlab ntshav uas coj cov ntshav rov qab los rau hauv lub plawv thiab tso ntshav tawm ntawm cov kabmob thiab cov ceg
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Cov leeg yuav tsum tau li qub kom cov ntshav ntws mus rau lub plawv. Theses li qub yog qhov tshwj xeeb hauv ob txhais ceg thiab caj npab. Lawv tawm tsam lub ntiajteb txawj nqus los tiv thaiv cov ntshav rov qab los. Cov hlab ntsha tsis xav tau li qub vim tias lub siab los ntawm lub plawv ua kom cov ntshav ntws los ntawm lawv mus rau ib qho
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