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Video: Vim li cas kuv qhov muag cov hniav thiaj li pom?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Yog vim li cas tib neeg muaj lub ntsej muag ntse cov hniav tsis yog rau tearing nqaij. Tib neeg muaj lub ntsej muag ntse cov hniav hu ua canines, ib yam li tsov ntxhuav, hippos, thiab lwm yam tsiaj. Contrary to nrov ntseeg, tib neeg canines tsis yog rau tearing thiab ripping nqaij. Hloov chaw, peb cov poj koob yawm txwv siv lawv los tua cov txiv neej sib tw rau txoj cai sib deev.
Cov lus nug tseem yog, vim li cas tag nrho kuv cov hniav qhia?
Peg cov hniav , qee zaum hu ua "Dracula cov hniav ", Yog ib yam ntawm kho hniav teeb meem hu ua microdontia. Yooj yim muab, microdontia yog qhov xwm txheej uas ib lossis ntau dua cov hniav tshwm me dua li ib txwm. Feem ntau cov hniav cuam tshuam yog cov hniav sab saud sab saud thiab tus hniav thib peb.
Tsis tas li ntawd, vim li cas kuv cov hniav canine thiaj ntev? Lawv hu ua miv vim lawv zoo li tus dev lub fangs. Thaum peb canine cov hniav tsis yog ntev li ntev , hais tawm lossis ntse raws li tus aub, lawv feem ntau ntev dua thiab taw qhia ntau dua peb lwm tus tib neeg cov hniav . Canines qee zaum raug xa mus rau raws li qhov muag cov hniav vim lawv txoj kev ua raws cov qhov muag.
Hauv qhov no, cov hniav zoo li cas hu ua?
Cov hlais yog zoo li tus chisels me me, nrog lub tiaj tiaj uas yog qhov ntse me ntsis. Cov cov hniav ib sab ntawm koj cov incisors yog hu ua canine (hais: KAY-cuaj) cov hniav . Muaj plaub ntawm lawv, ob sab saum toj thiab ob sab hauv qab. Vim cov no cov hniav yog taw tes thiab kuj ntse, lawv pab rhuav zaub mov.
Puas yog txhua tus muaj tus hmuv taw?
Lawv feem ntau yog qhov loj tshaj plaws cov hniav hauv tus tsiaj lub qhov ncauj. Cov tib neeg ntawm ntau hom tsiaj uas tsim lawv ib txwm muaj muaj plaub, ob lub puab tsaig sab saud thiab ob sab hauv qis, sib cais hauv txhua lub puab tsaig los ntawm kev sib tsoo; tib neeg thiab dev yog piv txwv. Hauv ntau hom tsiaj, miv yog cov ua ntej tshaj plaws cov hniav hauv cov pob txha maxillary.
Pom zoo:
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Qhov muag tsis pom yog tshwm sim los ntawm cov hlab ntsha qhov muag tawm sab nraub qaum ntawm txhua lub qhov muag. Tsis muaj cov duab pom tam sim no, yog li ntawd lub zeem muag ploj thaum lub teeb pom qhov chaw no (qhov muag tsis pom)
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Ib qho kev nyiam ua kom ntog thiab poob nrog qhov muag kaw yog qhov qhia txog kev puas ntsoog (piv txwv li polyneuropathy). Ib qho kev xav kom viav vias thiab ntog uas twb pom tseeb nrog lub qhov muag qhib yog qhov qhia tau tias kiv taub hau ntawm vestibular lossis cerebellar keeb kwm
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Cov dots yog cov qe ntshav dawb txav raws cov hlab ntsha zoo (capillaries) nyob rau hauv pem hauv ntej ntawm retina tom qab ntawm lub qhov muag. Qhov kev paub no hu ua 'blue field entoptic phenomenon' vim nws tshwj xeeb tshaj yog pom thaum saib mus rau hauv lub teeb xiav ci, xws li lub ntuj tsis muaj huab
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Ib tus neeg tuaj yeem pom qee cov ntshav tom qab txhuam lawv cov hniav lossis siv hlua, uas tuaj yeem ua rau khaus khaus. Feem ntau yog vim li cas ib tug neeg cov pos hniav los ntshav yog vim cov quav hniav los yog tartar buildup. Cov tshuaj no tso cai rau cov kab mob loj hlob raws cov pos hniav. Kev tu lub qhov ncauj zoo tuaj yeem tiv thaiv qhov tsis hnov tsw thiab los ntshav
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Nws yog hais txog biology ntawm cov receptors nyob rau sab nraum qab ntawm koj lub qhov muag, thiab tom qab ntawd cov txheej txheem neural uas ua rau kev nkag siab ntawm lawv. Brainard hais tias kev tshawb fawb taw tes rau qhov sib txawv hauv lub khob hliav qab - uas pom xim - raws li qhov laj thawj tseem ceeb ob lub qhov muag nyob hauv tib lub cev yuav txhua tus pom xim sib txawv me ntsis