![Nws siv sijhawm ntev npaum li cas rau lub paj hlwb txhawm rau txhim kho? Nws siv sijhawm ntev npaum li cas rau lub paj hlwb txhawm rau txhim kho?](https://i.answers-medical.com/preview/medical-health/14184896-how-long-does-it-take-for-the-nervous-system-to-develop-j.webp)
Video: Nws siv sijhawm ntev npaum li cas rau lub paj hlwb txhawm rau txhim kho?
![Video: Nws siv sijhawm ntev npaum li cas rau lub paj hlwb txhawm rau txhim kho? Video: Nws siv sijhawm ntev npaum li cas rau lub paj hlwb txhawm rau txhim kho?](https://i.ytimg.com/vi/tfE3aeXPOiY/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Pib ntawm lub paj hlwb
Tom qab fetus xeeb tub nws yuav siv sij hawm ib ncig peb mus rau plaub lub lis piam ua ntej ib ntawm ob lub xov tooj ntawm tes ntawm gelatin zoo li tib neeg lub cev me me, kwv yees li ib feem kaum ntawm ib nti ntev, pib ua tuab thiab tsim raws nruab nrab.
Hauv qhov no, thaum muaj hnub nyoog li cas lub paj hlwb tau txhim kho?
Lub sijhawm 23-25 lub lis piam cev xeeb tub kuj tseem yog lub sijhawm uas tsis muaj cov khoom siv sab nraud paj hlwb xaus thiab lawv qhov projection qhov chaw nyob rau hauv tus txha caj qaum ncav cuag puv kev loj hlob.
plaub theem ntawm kev txhim kho lub paj hlwb yog dab tsi? Qauv 4: Kev Txhim Kho Lub Hlwb
- Neural Induction.
- Loj hlob.
- Kev tsiv teb tsaws chaw.
- Kev sib txawv.
- Synaptogenesis.
- Cell Tuag.
- Synapse Rearrangement.
Ib sab saum toj no, dab tsi yog theem pib hauv kev txhim kho lub paj hlwb?
Cov thaum ntxov nruab nrab lub paj hlwb pib ua ib qho yooj yim neural phaj uas quav los ua ib qho neural zawj thiab tom qab ntawd neural raj. Qhov no thaum ntxov neural pib pib pib ntawm txhua qhov kawg tsim cov neuropores. Kev ua tsis tiav ntawm cov kev qhib kaw no ua rau muaj cov chav kawm loj ntawm neural abnormalities (neural tube defects).
Lub paj hlwb tsim los li cas?
Thaum lub sijhawm txhim kho thaum ntxov ntawm cov leeg pob txha pob txha, qhov nqaim ntev ntawm cov phaj neural maj mam sib sib zog nqus thiab cov kab ntawm ob sab ntawm nws (cov neural quav) thaum kawg sib ntsib, hloov pauv nws mus rau hauv lub raj kaw, ectodermal phab ntsa ntawm uas tsim cov rudimentary lub paj hlwb.
Pom zoo:
Nws siv sijhawm ntev npaum li cas txhawm rau tshuaj xyuas sai txhawm rau txheeb xyuas kev raug mob rau lub neej?
![Nws siv sijhawm ntev npaum li cas txhawm rau tshuaj xyuas sai txhawm rau txheeb xyuas kev raug mob rau lub neej? Nws siv sijhawm ntev npaum li cas txhawm rau tshuaj xyuas sai txhawm rau txheeb xyuas kev raug mob rau lub neej?](https://i.answers-medical.com/preview/medical-health/13815324-how-long-does-it-take-to-perform-a-rapid-exam-to-identify-life-threatening-injuries-j.webp)
Kev Ntsuam Xyuas Kev Mob Ceev Ceev yog txoj hauv kev nrawm (feem ntau yog 60 txog 90 vib nas this), feem ntau siv los ntawm Kev Pab Cuam Xwm Ceev (EMS), txhawm rau txheeb xyuas qhov zais thiab pom kev raug mob hauv kev raug mob. Lub hom phiaj yog txhawm rau txheeb xyuas thiab kho kev hem thawj tam sim rau lub neej uas tej zaum yuav tsis tau pom tseeb thaum lub sijhawm ntsuas thawj zaug
Nws siv sijhawm ntev npaum li cas rau cerebellum txhawm rau txhim kho?
![Nws siv sijhawm ntev npaum li cas rau cerebellum txhawm rau txhim kho? Nws siv sijhawm ntev npaum li cas rau cerebellum txhawm rau txhim kho?](https://i.answers-medical.com/preview/medical-health/13844927-how-long-does-it-take-for-the-cerebellum-to-develop-j.webp)
Kev hloov pauv tseem ceeb tshwm sim hauv cerebellum thaum lub sijhawm peb lub hlis thib ob, piv txwv li ntawm GA ntawm 14-22 lub lis piam. Lub sijhawm no, feem ntau cov qauv ntawm cerebellum, nrog rau cov qauv uas nyob ib sab, tsim ua ntu zus tab sis tsis paub tab
Nws siv sijhawm ntev npaum li cas txhawm rau txhawm rau kho?
![Nws siv sijhawm ntev npaum li cas txhawm rau txhawm rau kho? Nws siv sijhawm ntev npaum li cas txhawm rau txhawm rau kho?](https://i.answers-medical.com/preview/medical-health/13925008-how-long-does-it-take-for-a-disc-bulge-to-heal-j.webp)
Rau lub lis piam
Nws siv sijhawm ntev npaum li cas txhawm rau txhawm rau kho qhov txhab?
![Nws siv sijhawm ntev npaum li cas txhawm rau txhawm rau kho qhov txhab? Nws siv sijhawm ntev npaum li cas txhawm rau txhawm rau kho qhov txhab?](https://i.answers-medical.com/preview/medical-health/13932189-how-long-does-it-take-for-a-penile-fracture-to-heal-j.webp)
Tom qab phais tas, koj yuav nyob hauv tsev kho mob, feem ntau ib rau peb hnub. Tus kws kho mob yuav sau tshuaj kho mob thiab tshuaj tua kab mob. Noj koj cov tshuaj raws li koj tus kws kho mob hais. Tom qab phais tas, pob txha yuav siv sij hawm los kho kom zoo
Nws siv sijhawm ntev npaum li cas txhawm rau mob rwj txhawm rau txhim kho?
![Nws siv sijhawm ntev npaum li cas txhawm rau mob rwj txhawm rau txhim kho? Nws siv sijhawm ntev npaum li cas txhawm rau mob rwj txhawm rau txhim kho?](https://i.answers-medical.com/preview/medical-health/14107235-how-long-does-it-take-for-a-pressure-ulcer-to-develop-j.webp)
Cov kev tshawb pom los ntawm peb tus qauv qhia tau hais tias cov kab mob siab hauv cov ntaub so ntswg subdermal nyob rau hauv cov pob txha prominences yuav tshwm sim ntawm thawj teev thiab 4 mus rau 6 teev tom qab kev thauj mus los