![Kev hloov lub teeb yog dab tsi? Kev hloov lub teeb yog dab tsi?](https://i.answers-medical.com/preview/medical-health/14007369-what-is-light-adaptation-j.webp)
Video: Kev hloov lub teeb yog dab tsi?
![Video: Kev hloov lub teeb yog dab tsi? Video: Kev hloov lub teeb yog dab tsi?](https://i.ytimg.com/vi/LYgv-9PRpmk/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Kev hloov kho lub teeb yog qhov kev hloov ntawm lub qhov muag thaum peb txav los ntawm qhov tsaus ntuj mus rau thaj chaw uas pom kev. Lub cones ntawm ob lub qhov muag pib reacting rau lub brightness ntawm lub teeb thiab ua kom nquag plias dua li cov pas nrig ntawm qhov muag. Qhov no ua rau kom qhov tseeb ntawm qhov pom thiab qhov kev xav ntawm cov xim.
Hais txog qhov no, kev hloov kho lub teeb ua haujlwm li cas?
Nrog lub teeb yoog raws , lub qhov muag yuav tsum tau sai hloov mus rau lub teeb pom kev tom qab kom tuaj yeem paub qhov txawv ntawm cov khoom hauv keeb kwm yav dhau no. Kev hloov kho lub teeb tuaj yeem tshawb nrhiav los ntawm kev txiav txim siab qhov pib nce ntxiv. Hauv qhov kev sim pib nce ntxiv, kev sim ntsuas tau nthuav tawm ntawm keeb kwm yav dhau los ntawm qee qhov ci ntsa iab.
Ntxiv mus, yuav siv sijhawm ntev npaum li cas? Rods yog rhiab heev rau teeb thiab yog li ntawd coj ntev dua kom puv hloov rau qhov kev hloov hauv teeb . Qws, uas nws cov duab rov tsim dua qeeb dua, ua tsis ncav cuag lawv qhov siab tshaj plaws txog li ob teev. Cones coj kwv yees li 9-10 feeb mus rau hloov mus rau qhov tsaus ntuj.
Ib yam li ntawd, tej zaum koj yuav nug, qhov txawv ntawm qhov sib txawv ntawm lub teeb thiab qhov tsaus nti adaptation yog dab tsi?
Lub sijhawm lub teeb adaptation retinal rhiab heev poob. Tsaus adaptation yeej tseem zoo rov qab ntawm lub teeb yoog raws . Nws tshwm sim thaum mus los ntawm lub qhov dej teeb cheeb tsam rau a tsaus ntuj cheeb tsam. Tsis tas li, tag nrho cov pas nrig xim tau tawm los vim yog qhov ci teeb thiab cov pas nrig yog thawj qhov tsis ua haujlwm.
Dab tsi yog txhais los ntawm kev hloov lub teeb thiab tsaus ntuj Lawv tshwm sim li cas?
Kev hloov kho lub teeb hais txog txheej txheem ntawm kev kho kom ci teeb tom qab raug dim teeb . Cov txheej txheem no yuav siv sijhawm ze li ib feeb lossis ob feeb. Ntawm qhov tod tes, kev hloov kho tsaus nti hais txog txheej txheem ntawm kev hloov kho mus rau ib puag ncig qhov pom kev tsis pom kev tom qab kis tau qhov kaj teeb.
Pom zoo:
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Thaum kev ntxhov siab pom tau tias yog tswj tau, teeb meem tsom mus rau cov tswv yim daws teeb meem cuam tshuam nrog cov tsos mob ntawm kev puas siab puas ntsws, thaum nyob hauv qhov xwm txheej tsis txaus ntseeg, kev xav-tsom mus rau kev daws teeb meem cuam tshuam nrog cov tsos mob tsawg dua
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Lub teeb yog mapped raws li ib tug duab nyob rau saum npoo ntawm lub retina los ntawm activating ib tug series ntawm lub teeb-sensitive hlwb hu ua rods thiab cones. Cov hlwb photoreceptor no hloov lub teeb mus rau hluav taws xob uas tau xa mus rau lub hlwb los ntawm cov hlab ntsha
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TTM tso siab tias tib neeg txav mus rau rau theem ntawm kev hloov pauv: kev npaj ua ntej, kev xav, kev npaj, kev nqis tes ua, kev saib xyuas, thiab txiav tawm. Kev txiav tawm tsis yog ib feem ntawm tus qauv qub thiab tsis tshua muaj siv nyob rau hauv daim ntawv thov ntawm theem ntawm kev hloov pauv rau kev coj cwj pwm kev noj qab haus huv