Video: Vim li cas neurons hu ua cov qauv yooj yim?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Txawm hais tias lub paj hlwb yog complex, paj hlwb muaj ob xwb yooj yim hom ntawm paj hlwb : neurons thiab glial hlwb. Neurons yog cov tus qauv thiab chav ua haujlwm ntawm lub paj hlwb. Lawv xa hluav taws xob signals, hu ua paj hlwb impulses. Glial cells muab kev txhawb nqa rau neurons.
Ntxiv mus, tus qauv ntawm neuron yog dab tsi?
Lub hauv paus tseem ceeb ntawm cov neuron yog cov soma ( cev cell ), cov axon (ib qhov ntev slender projection uas ua hluav taws xob impulses deb ntawm lub cev cell ), dendrites (tsob ntoo zoo li cov qauv uas tau txais cov lus los ntawm lwm tus neurons), thiab synapses (tshwj xeeb kev sib tshuam ntawm cov neurons).
Ib tus kuj tseem yuav nug, dab tsi yog neuron? A neuron yog lub paj hlwb uas yog lub hauv paus tsev thaiv ntawm lub paj hlwb. Neurons tshwj xeeb tshaj yog xa cov ntaub ntawv thoob plaws lub cev. Cov paj hlwb tshwj xeeb no yog lub luag haujlwm rau kev sib txuas lus cov ntaub ntawv nyob rau hauv ob qho tib si tshuaj thiab hluav taws xob cov ntaub ntawv.
Tsis tas li kom paub yog, dab tsi yog cov qauv yooj yim thiab ua haujlwm ntawm neuron?
Yog li, los tshuaj xyuas, neurons yog cov hlwb tshwj xeeb ntawm lub paj hlwb uas xa cov cim thoob plaws lub cev. Neurons muaj cov ntawv txuas ntxiv uas nthuav tawm los ntawm ntawm tes lub cev hu ua dendrites thiab axons. Dendrites yog txuas ntxiv ntawm neurons uas tau txais signals thiab coj lawv mus rau lub ntawm tes lub cev.
Neuron yog dab tsi thiab nws txoj haujlwm?
Neuron . Neurons (tseem paub tias yog neurones, cov hlab ntsha hlwb thiab cov paj hlwb) yog cov hluav taws xob zoo tshaj plaws hauv lub hlwb cov lub paj hlwb muaj nuj nqi los ua thiab xa cov ntaub ntawv. Hauv cov tsiaj txhu vertebrate, neurons yog cov cov khoom tseem ceeb ntawm cov lub hlwb, tus txha nqaj qaum thiab lub paj hlwb peripheral.
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