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Video: Ommatidia yog dab tsi thiab muaj pes tsawg leej pom nyob hauv qhov muag pom crayfish?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Xya lub hlwb, sawv cev rau txhua hom, tau muab ua ke ua ke ommatidia.
Raws li, dab tsi yog qhov muag sib xyaw ua los ntawm?
A sib xyaw qhov muag yog qhov muag pom pom nyob hauv cov pob txha xws li kab thiab kab noj. Nws yuav suav nrog ntau txhiab tus ommatidia, uas yog cov chav me me ywj siab photoreception uas suav nrog lub qhov muag, tsom iav, thiab cov duab photoreceptor uas cais qhov ci thiab xim.
Ib yam li ntawd, hom ntsej muag dab tsi arachnids muaj? Arachnids muaj ob yam muag : ob sab thiab nruab nrab ocelli. Obell ocelli hloov zuj zus los ntawm kev sib xyaw qhov muag thiab tej zaum muaj tapetum, uas ua rau muaj peev xwm sau tau lub teeb. Nrog rau kev zam ntawm scorpions, uas tuaj yeem ua tau muaj txog tsib khub ntawm ocelli ib sab, tsis muaj ntau dua peb khub tam sim no.
Ib sab saum toj, pes tsawg lub qhov muag puas muaj qhov muag sib xyaw?
Cov qhov muag sib txuas tsis muaj dab tsi zoo li tib neeg qhov muag . Peb muaj ob lub qhov muag thiab txhua qhov peb muaj lub lens uas tsom mus rau daim duab ntawm peb lub qhov muag.
Puas yog tib neeg muaj qhov muag sib xyaw?
Cov qhov muag ntawm tib neeg thiab tsiaj txhu loj, thiab lub koob yees duab lo ntsiab muag tau muab cais ua "yooj yim" vim tias nyob rau ob qho tib si tib lub lens sib sau thiab tsom mus rau lub teeb ci rau lub qhov muag lossis zaj duab xis. Ntau kab muaj ob lub qhov muag suav nrog ntau lo ntsiab muag (txog kaum txhiab), txhua lub teeb tsom mus rau tsawg tus lej ntawm cov hlwb retinula.
Pom zoo:
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Qhov muag tsis pom, lossis ob-qhov muag tsis pom, yog thaum tus neeg mob tsis paub tias lawv tau txais kev kho mob li cas. Lawv tuaj yeem tau txais cov placebo lossis cov tshuaj tiag. Qhov muag tsis pom kuj tseem hais txog kev coj ua ntawm kev khaws lub npe ntawm kev kho mob. Placebos tuaj yeem siv rau qhov muag tsis pom hauv kev txheeb cais
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Tsis pub dhau ntu ua ntej yog ob qhov chaw ua kua dej: chav nyob sab hauv nruab nrab ntawm lub ntsej muag tom qab ntawm lub qhov muag (piv txwv li lub qhov muag lub qhov muag) thiab lub qhov muag. posterior chamber nruab nrab ntawm iris thiab lub ntsej muag pem hauv ntej ntawm vitreous
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ICD-10-PCS Root Operations Muaj 31 lub hauv paus kev ua haujlwm hauv ntu kev kho mob thiab phais, uas tau teem rau hauv cov pab pawg uas muaj cov cwj pwm zoo sib xws (saib cov lus "Kev Kho Mob thiab Kev phais hauv paus Kev Ua Haujlwm" ntawm nplooj ntawv 59 rau cov npe sau npe ntawm tag nrho 31 hauv paus kev ua haujlwm hauv ntu kev kho mob thiab phais mob)
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Lub tapetum lucidum, uas tsis pom nyob rau hauv tib neeg lub qhov muag, ua haujlwm kom pom lub teeb mus rau retina
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Riceville Ua kom pom qhov no, lub hom phiaj ntawm Jane Elliott's Blue Eye Brown Eye activity yog dab tsi? Lub hom phiaj yog sim sim kev ntxub ntxaug lwm haiv neeg kev coj noj coj ua, thiab thoob plaws qhov kev tawm dag zog Elliott yog tus thawj coj muaj cai.