Lub peev xwm so yog lub xeev ntawm daim nyias nyias ntawm qhov hluav taws xob ntawm −70 mV, yog li cov sodium cation nkag mus rau ntawm tes yuav ua rau nws tsis zoo. Qhov no yog hu ua depolarization, txhais tau hais tias lub peev xwm membrane txav mus rau xoom.
Yuav ua li cas rau daim nyias nyias thaum lub sij hawm depolarization?
Lub sijhawm depolarization, daim nyias nyias muaj peev xwm hloov pauv sai ntawm qhov tsis zoo mus rau qhov zoo. … Raws li cov sodium ions maj mam rov qab mus rau hauv lub cell, lawv ntxiv cov nqi zoo rau lub cell sab hauv, thiab hloov cov membrane muaj peev xwm los ntawm qhov tsis zoo mus rau qhov zoo.
Dab tsi yog daim nyias nyias muaj peev xwm depolarization?
Txhob Cia Siab. Depolarisation yog hais txog ib qho kev hloov pauv tam sim hauv daim nyias nyias muaj peev xwm- feem ntau yog los ntawm (kwv yees) tsis zoo rau qhov zoo sab hauv. Nyob rau hauv teb rau lub teeb liab pib ntawm ib tug dendrite, sodium channels qhib nyob rau hauv lub membrane ntawm lub axon.
Yuav ua li cas thaum lub sijhawm depolarization ntawm qhov muaj peev xwm ua tau?
Thaum lub sijhawm depolarization ntawm qhov muaj peev xwm ua tau, qhib Na + channel tso cai rau Na + ions mus rau hauv lub cell …, uas nyob rau hauv lem ua rau ntau voltage-gated Na+ channels qhib.
Dab tsi yog depolarization hauv kev ua tau zoo?
Stimulus pib qhov hloov pauv sai hauv qhov hluav taws xob lossis qhov ua tau zoo. … Depolarization yog ua rau muaj kev nce sai hauv daim nyias nyias muaj peev xwm qhib cov sodium channels hauv cellular membrane, ua rau muaj ntau cov sodium ions.
