Video: Puas yog nyuj muaj cov hniav sab saud?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Nyuj muaj peb caug-ob cov hniav , suav nrog rau incisors los yog tom cov hniav thiab ob tus menyuam dev nyob rau pem hauv ntej ntawm lub puab tsaig hauv qab. Lub incisor cov hniav ntsib nrog tuab tuab kev kho hniav pad ua sab sauv puab tsaig. Nyuj muaj rau premolars thiab rau molars ntawm ob qho tib si saum thiab lub puab tsaig hauv qab rau tag nrho nees nkaum plaub molars.
Zoo ib yam tuaj yeem nug, muaj pes tsawg tus hniav sab saum toj muaj nyuj muaj?
A nyuj muaj 32 cov hniav : six ua incisors , ob tug canines thiab tus so yog molars. Feem ntau ntawm a nyuj cov hniav nyob rau hauv nws lub puab tsaig qis. Nyob sab saum toj , ib nyuj muaj tsis muaj cov hniav hauv
Ib sab saum toj no, cov ruminants puas muaj cov hniav sab sauv? Cov ruminants xws li nyuj, yaj thiab tshis yog tshuaj ntsuab nrog lub cev tshwj xeeb zom. Ib tug tseem ceeb feature ntawm hniav hniav anatomy yog tias lawv tsis muaj Upper incisors , es tsis txhob " kev kho hniav ncoo ", raws li qhia hauv daim duab rau sab xis ntawm tus tshis.
Ib yam nkaus, Puas yog Twm muaj cov hniav sab saud?
Tsiaj Corner - Dej Twm Lub Sijhawm Pub Noj! Raws li koj tuaj yeem pom hauv daim duab, cov tsiaj nyuj zoo li cov dej no buffalo ua tsis muaj saum cov hniav . Lawv muaj a kev kho hniav pad uas pab lawv zom lawv cov zaub mov.
Tus tsov ntxhuav cov hniav txawv li cas ntawm tus nyuj nyuj?
Lions yog carnivores - lawv tsuas noj nqaij. Lawv loj, ntse cov hniav tau tsim los kom tua tsiaj thiab noj nqaij. Nyuj Ntawm qhov tod tes, yog herbivores - lawv tsuas yog noj cov nroj tsuag.
Pom zoo:
Puas yog mis nyuj tsis muaj mis nyuj vegan?
Cov neeg uas muaj kev tsis haum rau lactose tuaj yeem noj cov zaub mov uas muaj casein thiab whey, uas yog cov protein ntau, tsis yog suab thaj. Yog tias cov khoom lag luam tau sau npe tias tsis muaj lactose, qhov ntawd tsis tau txhais hais tias nws tsis tas yuav muaj mis nyuj dawb. Cov neeg uas nrhiav cov khoom tsis pub mis nyuj tuaj yeem yog vegan lossis muaj kev tsis haum rau mis nyuj (feem ntau yog cov protein, casein lossis whey)
Vim li cas tus nyuj thiaj hu ua nyuj nyuj?
Cov npe. Lub npe cowslip tej zaum yuav muab los ntawm lus Askiv qub rau nyuj quav, tej zaum vim tias cov nroj tsuag tau pom ntau zuj zus nyob hauv cov quav hauv cov nyom nyuj. Ib qho kev xaiv lwm yam tsuas yog hais txog qhov nplua lossis av av; dua, ib txwm nyob rau tsob ntoo no
Dab tsi yog qhov nruab nrab ntawm sab laug sab saud thiab qis hauv lub plawv?
Lub mitral valve thiab tricuspid valve nyob nruab nrab ntawm atria (lub plawv sab hauv) thiab lub ventricles (qis hauv plawv)
Koj puas tuaj yeem tau cov hniav nyiaj hniav kub yog tias koj muaj cov hniav nkhaus?
Koj tuaj yeem tau txais cov hniav nyiaj hniav kub txawm tias koj tsis muaj cov hniav ncaj ncaj. Cov pwm uas peb tau txais los ntawm peb cov neeg siv khoom tso cai rau peb ua cov hniav nyiaj hniav kub kom haum rau lawv cov hniav thiab tsis muaj teeb meem tiag tiag txawm hais tias cov hniav puas nkhaus lossis tawg. Peb tseem tuaj yeem ua cov hniav nyiaj hniav kub ncaj kom koj cov hniav saib ncaj
Cov neeg tawv ncauj puas muaj cov hniav sab saud?
Ruminants xws li nyuj, yaj thiab tshis yog tshuaj ntsuab nrog lub cev tshwj xeeb zom. Ib qho tseem ceeb ntawm ruminant kho hniav anatomy yog tias lawv tsis muaj lub sab sauv incisors, muaj qhov hloov 'dental pad', raws li qhia hauv daim duab rau sab xis ntawm tshis