Thaum axons tau ntim ua ke, lawv tsim cov hlab ntsha uas tsim lub network rau kev nkag mus ntawm cov hlab ntsha hluav taws xob thoob plaws lub cev. Lub luag haujlwm tseem ceeb ntawm myelin yog tiv thaiv thiab thaiv cov axons thiab txhim kho kev sib kis ntawm hluav taws xob impulses.
Dab tsi yog qhov ua haujlwm ntawm myelin ntawm axon?
Ntau yam zoo li cov rwb thaiv tsev nyob ib puag ncig ntawm cov xov hlau hauv cov tshuab hluav taws xob, glial hlwb tsim cov ntaub qhwv ib puag ncig axons hu ua myelin, yog li insulating lub axon Qhov no myelination, raws li nws hu ua, tuaj yeem Ua kom nrawm nrawm ntawm cov teeb liab kis ntawm cov neurons (paub tias yog qhov ua tau zoo).
Lub hom phiaj ntawm myelin sheath ntawm axon quizlet yog dab tsi?
Lub luag haujlwm tseem ceeb ntawm myelin sheath yog: insulate lub axon thiab nce qhov nrawm ntawm cov neurons xa lawv cov lus.
Dab tsi yog myelin sheath thiab nws lub luag haujlwm tseem ceeb yog dab tsi?
Myelin yog ib txheej insulating, los yog sheath uas tsim nyob ib ncig ntawm cov hlab ntsha, nrog rau cov nyob rau hauv lub hlwb thiab qaum qaum. … Qhov no myelin sheath tso cai rau hluav taws xob impulses kom kis tau sai thiab muaj txiaj ntsig raws cov paj hlwb.
Dab tsi yog ob lub luag haujlwm ntawm myelin sheath?
Lub luag haujlwm tseem ceeb ntawm myelin sheath yog: 1) Nws ua raws li hluav taws xob rwb thaiv tsev rau cov neurone - nws tiv thaiv hluav taws xob impulses mus los ntawm lub sheath. 2) Lub plhaub tiv thaiv kev txav ntawm ions mus rau hauv lossis tawm ntawm cov neurone / nws tiv thaiv depolarisation.
