Video: Yuav ua li cas yog lub hauv paus mob thaum ib tug neuron tau piav raws li polarized?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
A. Muaj kev sib cais ntawm qhov zoo thiab qhov tsis zoo nyob rau hauv ib daim nyias nyias. Dab tsi yog Cov xwm txheej yooj yim thaum lub neuron tau piav qhia tias yog polarized ? Lus Teb: Na+ yog pom sab nraum ntawm neuron thiab K+ tau pom sab hauv ntawm tes.
Yog li ntawd, qhov twg yog qhov tseem ceeb txais tos ntawm cov neuron?
Dendrites
Ib sab saum toj no, hom kev tshwm sim twg yuav tsum tau ua kom muaj peev xwm tsim tau? Neuron uas tawm mus peev xwm ua , los yog paj hlwb impulse, feem ntau hais rau "hluav taws". Tej yam peev xwm ua tau yog tsim tawm los ntawm tshwj xeeb hom ntawm qhov hluav taws xob-gated ion raws hauv lub cell cov ntshav ntshav.
Ua qhov no hauv kev txiav txim siab, txheej txheem twg tso cai rau tus kab mob rabies nkag mus rau hauv nruab nrab lub paj hlwb CNS)?
Ib qho neurotransmitter raug tso tawm los ntawm exocytosis. Cov txheej txheem twg tso cai rau tus kab mob rabies tau nkag mus rau hauv nruab nrab paj hlwb ( CNS)? Cov tus kab mob rabies siv retrograde txav raws lub neuron axon.
Cov txheej txheem twg yog siv los ua haujlwm cais cov neurons?
Functional classification pawg neurons raws li cov kev taw qhia uas cov paj hlwb taug kev txheeb ze rau hauv nruab nrab lub paj hlwb. Raws li cov txheej txheem no, muaj cov neurons sensory, motor neurons, thiab interneurons.
Pom zoo:
Yuav ua li cas cov kab mob hauv plab nkag mus rau hauv lub hauv paus paj hlwb?
Cov kab mob hauv lub cev tau piav raws li 'lub paj hlwb thib ob' rau ntau qhov laj thawj. Feem ntau nws sib txuas lus nrog lub hauv nruab nrab lub paj hlwb (CNS) los ntawm parasympathetic (piv txwv li, ntawm lub vagus hlab ntsha) thiab kev khuv leej (piv txwv li, ntawm prevertebral ganglia) lub paj hlwb
Yuav ua li cas koj thiaj nrhiav tau cov hauv paus hniav ntawm ib tug neeg ntxub ntxaug?
Cov hauv paus hniav ntawm ib qho kev sib npaug Quadratic Hais x2 = -1 yog qhov sib npaug plaub npaug. Tsis muaj tus lej tiag uas nws cov xwm txheej tsis zoo. Yog li ntawd rau qhov sib npaug no, tsis muaj cov lej tiag tiag. Li no, qhov kev qhia (b2 - 4ac) yog hu ua kev sib cais ntawm qhov sib npaug ntawm plaub fab ax2 + bx + c = 0
Nws txhais tau li cas thaum lub neuron polarized?
Thaum lub paj hlwb tsis txhawb nqa - nws tsuas yog zaum uas tsis muaj lub siab xav nqa lossis xa tawm - nws daim nyias nyias yog qhov sib txawv. Tsis tuag tes tuag taw. Polarized. Ua polarized txhais tau hais tias cov hluav taws xob them rau sab nraud ntawm daim nyias nyias yog qhov zoo thaum cov hluav taws xob them rau sab hauv ntawm daim nyias nyias yog qhov tsis zoo
Dab tsi yog cov txheej txheem cais ntawm neuron uas dhau los ntawm hauv paus hauv paus?
Qauv. Cov neurons suav nrog cov hauv paus dorsal ganglion yog hom pseudo-unipolar, txhais tau tias lawv muaj lub cev ntawm tes (soma) nrog ob ceg uas ua raws li ib qho axon, feem ntau hu ua cov txheej txheem distal thiab cov txheej txheem sib thooj
Thaum tus kws kho mob tau tso cai tso cai ntau npaum li cas yuav tsum muaj kev sib ntsib tim ntsej tim muag tshwm sim ntawm tus kws kho mob thiab cov kws kho mob qib siab uas tau sau npe rau tus nais maum?
Txawm li cas los xij, yog tias APRN lossis PA tau nyob hauv daim ntawv pom zoo tso cai nrog kws saib xyuas kws kho mob tsawg kawg tsib ntawm xya xyoo dhau los, cov rooj sib tham tim ntsej tim muag yuav tsum tshwm sim tsawg kawg ib hlis txog rau thawj hnub ntawm hnub uas tau pom zoo kos npe