Video: Vim li cas lub xovtooj ntawm so tau txiav txim siab ua polarized?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Neurons ntawm so yog suav tias yog "polarized , " thiab "depolarization" ua rau sab hauv ntawm tes tsis zoo thiab sab nraud tsis zoo. Qee cov ion channels hauv lub paj hlwb tau qhib sai sai thaum lub membrane muaj peev xwm ncav cuag ib qho hluav taws xob.
Ib yam li ntawd, nws tau nug, nws txhais li cas thaum lub xovtooj ntawm yog polarized?
Cov ntawm tes membrane cais sab hauv ntawm a ntawm tes (tag nrho hlwb , tsis yog neurons) los ntawm sab nraud, thiab txhua yam tshuaj uas nkag mus thiab tawm ntawm ntawm tes yuav tsum mus kom ze nws. Zoo li txhua yam hlwb , cov ntawm tes membrane ntawm neuron yog polarized . Qhov no txhais tau tias tias muaj qhov sib txawv hluav taws xob hla ntawm tes daim nyias nyias.
Qhov thib ob, nws txhais li cas los hais tias neuron yog polarized ntawm nws lub peev xwm so? Polarized . Ua polarized txhais tau tias tias cov them nqi hluav taws xob cov sab nraum cov membrane yog qhov zoo thaum cov hluav taws xob them rau cov sab hauv cov membrane yog qhov tsis zoo.
Ib yam li ntawd, koj yuav nug, puas yog neuron polarized ntawm so?
1. Thaum a neuron yog ntawm so , cov neuron tuav hluav taws xob polarization (piv txwv li, qhov tsis zoo hluav taws xob muaj peev xwm muaj nyob hauv neuron cov membrane nrog kev hwm rau sab nraud). Qhov sib txawv ntawm qhov muaj peev xwm hluav taws xob lossis qhov hluav taws xob yog hu ua qhov muaj peev xwm so.
Vim li cas Neurilemma yog polarized thaum so?
Kev piav qhia: Cov neurolema yog cov cell membrane ntawm cov neuron. Cov polarization ntawm nuerolema yog vim muaj hav zoov ntau dua? sab nraum lub neuron tshaj sab hauv (net positive charge is greater sab nraum lub neuron tshaj sab hauv). Qhov no ua rau neurolema kom muaj nuj nqi tsis zoo.
Pom zoo:
Dab tsi yog ob qhov teeb meem kev sib tw uas Lub Tsev Hais Plaub Qib Siab hauv Xeev California tau txiav txim siab seb koj yuav sib npaug li cas hauv qhov xwm txheej tarasoff?
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