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Video: Cov ntaub ntawv xav tau mus rau lub hlwb li cas?
![Video: Cov ntaub ntawv xav tau mus rau lub hlwb li cas? Video: Cov ntaub ntawv xav tau mus rau lub hlwb li cas?](https://i.ytimg.com/vi/B2B9YiuMHVQ/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Hnov cov neurons tau txais kev xav thiab nqa lawv los ntawm kev nkag siab lub cev mus rau tus txha caj qaum lossis lub hlwb . Interneurons txuas kev xav thiab lub cev muaj zog neurons thiab txhais qhov kev xav. Lub cev muaj zog neurons nqa impulses los ntawm lub lub hlwb thiab txha caj qaum rau cov leeg los yog qog.
Ib yam li ntawd, nws tau nug, cov ntaub ntawv nkag siab nkag mus rau lub hlwb li cas?
Kev nkag siab zoo mus rau lub hlwb nkag mus los ntawm txoj kev uas taug kev los ntawm tus txha caj qaum (rau somatosensory nkag los ntawm lub cev) los yog lub hlwb qia (rau txhua yam, tshwj tsis yog qhov pom thiab olfactory systems) rau ncav cuag lub diencephalon. Hauv diencephalon, kev xav txoj kev ncav cuag thalamus.
Tsis tas li ntawd, lub paj hlwb tswj kev nkag siab zoo li cas? Tus txha nqaj qaum ua kev xav cov ntaub ntawv (cov ntaub ntawv los ntawm lub cev) los ntawm peripheral paj hlwb mus rau lub lub hlwb . Tom qab ua nws ntau nkag siab , cov lub hlwb pib lub cev muaj zog tawm tswv yim (koom ua ke cov lus teb) uas tsim nyog rau sensory tswv yim nws txais.
Ib yam li ntawd, koj tuaj yeem nug, cov ntaub ntawv kev hnov qab kis tau li cas?
Afferent los yog kev xav neurons sau cov kev txhawb nqa uas tau txais los ntawm cov neeg txais khoom thoob plaws lub cev, suav nrog daim tawv nqaij, qhov muag, pob ntseg, qhov ntswg, tus nplaig nrog rau qhov mob thiab lwm yam kev txais hauv lub cev. Cov ntaub ntawv nkag siab yog kis mus rau lub hauv paus paj hlwb, uas muaj xws li lub hlwb thiab tus txha caj qaum.
Dab tsi yog lub luag haujlwm ntawm lub paj hlwb hauv kev nkag siab nkag siab cov txheej txheem teb?
Nruab Nrab Ntshai Qhov System lub hlwb yog lub cev tseem ceeb tswj chaw. Lub ntsiab muaj nuj nqi ntawm CNS yog kev koom ua ke thiab ua ntawm kev xav cov ntaub ntawv. Nws synthesizes kev nkag siab xam lub cev muaj zog tsim nyog lus teb , los yog tso tawm.
Pom zoo:
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Hloov daim ntawv kab ntawv mus rau cov ntaub ntawv kho mob hluav taws xob Txhua tus kab mob ntawm tus neeg mob tau luam tawm rau hauv cov ntaub ntawv kho mob hluav taws xob (EMR). Ib nrab ntawm kev tshuaj xyuas kab mob ntawm tus neeg mob rau hauv EMR system. Luam theej duab txhua tus neeg mob nplooj ntawv sau rau hauv EMR system. Ntiav ib lub tuam txhab sab nraud los tshuaj xyuas tag nrho koj cov kab kos rau hauv EMR system. Tsis txhob luam cov ntaub ntawv qub rau hauv EMR system
Dab tsi nqa cov ntaub ntawv mus rau lub hlwb?
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Cov neurons hnov qab nqa cov cim qhia los ntawm sab nrauv ntawm koj lub cev (ib puag ncig) mus rau hauv lub hauv paus paj hlwb. Lub cev muaj zog neurons (motoneurons) nqa cov cim los ntawm lub hauv paus paj hlwb mus rau sab nrauv (nqaij, tawv nqaij, qog) ntawm koj lub cev. Interneurons txuas ntau yam neurons hauv lub hlwb thiab tus txha caj qaum
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MATERIALS Poster board. Cov ntawv xov xwm. Lwm cov duab thiab cov ntawv sau los ntawm cov duab kos duab, cov phau ntawv qub, cov ntawv luam tawm hauv computer, thiab lwm yam. (yeem) txiab. Cov nplaum nplaum. Ntawv thiab cwj mem. Sharpies lossis lwm cov cim ruaj khov (xaiv tau)
Qhov twg ntawm lub qhov muag muaj lub teeb pom kev uas hloov pauv lub teeb liab mus rau hauv kev xav ntawm lub paj hlwb?
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Lub teeb yog mapped raws li ib tug duab nyob rau saum npoo ntawm lub retina los ntawm activating ib tug series ntawm lub teeb-sensitive hlwb hu ua rods thiab cones. Cov hlwb photoreceptor no hloov lub teeb mus rau hluav taws xob uas tau xa mus rau lub hlwb los ntawm cov hlab ntsha
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Lub lobe parietal nqa tawm qee qhov haujlwm tshwj xeeb. Raws li ib feem ntawm lub cortex, nws muaj ntau lub luag haujlwm thiab yuav tsum muaj peev xwm ua cov ntaub ntawv nkag siab zoo hauv vib nas this. Lub lobe parietal yog qhov twg cov ntaub ntawv xws li saj, kub thiab kov tau sib xyaw, lossis ua tiav