Cov txheej txheem:
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Video: Dab tsi yog 3 ntu ntawm cov plaub hau ncej?
![Video: Dab tsi yog 3 ntu ntawm cov plaub hau ncej? Video: Dab tsi yog 3 ntu ntawm cov plaub hau ncej?](https://i.ytimg.com/vi/HlDnBGJM6uA/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov plaub hau yog tsim los ntawm peb txheej:
- Lub medulla - qhov tob tshaj ntawm txheej plaub hau , tsuas yog pom hauv qhov loj thiab tuab cov plaub hau .
- Cortex - txheej nruab nrab ntawm plaub hau uas muab lub zog, xim thiab kev ntxhib los mos ntawm a plaub hau fiber ntau.
- Lub cuticle - txheej sab nrauv ntawm plaub hau yog nyias thiab tsis muaj xim.
Ntawm no, dab tsi yog 3 txheej ntawm plaub hau plaub hau?
Txhua lub hau plaub hau yog ua los ntawm ob lossis peb txheej: lub tawv nqaij , cov cortex , thiab qee zaum medulla . Cov daim tawv nqaij yog txheej txheej sab nraud. Ua los ntawm cov hlwb uas sib tshooj uas sib tshooj zoo li cov vuas ntawm lub ru tsev terra-cotta, tawv nqaij tiv thaiv sab hauv ntawm cov plaub hau ncej ntawm kev puas tsuaj.
Kuj Paub, ntawm txheej txheej plaub hau plaub hau pib li cas? Nws yog Feem ntau ua los ntawm cov tuag, keratinized hlwb. Strands ntawm plaub hau originate nyob rau hauv ib tug epidermal nkag mus rau lub dermis hu ua plaub hau cov hauv paus hniav. Cov plaub hau yog ib feem ntawm plaub hau tsis anchored rau lub hauv paus, thiab ntau ntawm no yog nthuav tawm ntawm daim tawv nqaij.
Hauv qhov no, 3 feem ntawm cov plaub hau yog dab tsi?
Cov plaub hau ncej yog suav nrog peb txheej: cuticle, cortex, thiab medulla. Lub cuticle yog cov plaub hau txheej txheej feem ntau uas muaj shingle los yog nplai zoo li cov cell uas sib tshooj. Cov hlwb no ua haujlwm tiv thaiv kom tsis txhob muaj kev puas tsuaj rau lub cev cov plaub hau txheej txheem sab hauv thiab tswj cov ntsiab lus dej ntawm plaub hau fiber ntau.
Dab tsi yog plaub hau ua los ntawm?
Plaub hau yog ua los ntawm protein ntau hu ua keratin. A cov plaub hau anchors txhua plaub hau rau ntawm daim tawv nqaij Cov plaub hau teeb tsim lub hauv paus ntawm cov hauv paus plaub hau . Hauv plaub hau noob qes, cov hlwb nyob sib faib thiab loj hlob los tsim plaub hau.
Pom zoo:
Qhov txawv ntawm cov hauv paus plaub hau thiab cov hauv paus plaub hau yog dab tsi?
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Qhov sib txawv ntawm cov hauv paus plaub hau thiab hauv paus plaub hau yog dab tsi? Lub hauv paus yog lub teeb ntawm qhov kawg ntawm txhua txoj hlua ntawm cov plaub hau. Lub hauv paus yog qhov qhib hauv tawv taub hau uas tsim cov plaub hau-hauv paus ntawm cov plaub hau txuas rau hauv lub hauv paus
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Sab nraub qaum ntu tuaj yeem cuam tshuam kev puas tsuaj rau sab laug ventricle tshwm sim los ntawm ntshav siab, lub plawv nres, lub plawv aortic tsis ua haujlwm, kab mob hauv lub plawv, lub plawv tsis ua haujlwm, lossis lwm yam mob plawv. Yog tias cov ceg ntoo thaiv tau ua rau muaj cov tsos mob, tom qab ntawd qhov teeb meem yuav hnyav txaus kom xav tau lub tshuab ua kom nrawm dua
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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
Koj puas tuaj yeem tuag los ntawm ntu ntu ntu ntu thaiv?
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Hauv cov neeg laus uas muaj tus kab mob coronary artery, sab laug bundle ceg thaiv yog txuam nrog kev pheej hmoo ntawm kev tuag ntau dua. Qhov no tshwj xeeb tshaj yog rau cov neeg uas muaj lub plawv tsis ua haujlwm. Sab laug bundles ceg thaiv kuj txuas nrog kev pheej hmoo ntawm kev tuag ntau dua tom qab lub plawv nres
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Cov plaub hau grey txawv ntawm lwm cov plaub hau xim li cas? hais txog cov duab ntawm cov plaub hau thiab tau piav raws li ncaj, laim ntoom, curly lossis curly heev