Neurons vs Neuroglia
Lub paj hlwb yog tsim los ntawm ob hom loj ntawm cov hlwb hu ua neurons thiab neuroglia. Txawm li cas los xij, ntau tus muaj kev nkag siab tias tsuas muaj cov neurons hauv lub paj hlwb, thiab cov hlwb txhawb nqa tsis nco qab. Yog li ntawd, nws yuav yog qhov zoo tshaj los mus dhau qee cov ntaub ntawv tseem ceeb ntawm ob hom cell no ua ke raws li hauv kab lus no.
Neurons
Neurons yog cov qauv tsim thiab kev ua haujlwm ntawm lub paj hlwb, uas yooj yim heev rau hluav taws xob xa mus thiab ua cov ntaub ntawv hauv lub cev ntawm cov tsiaj. Kev taw qhia lossis teeb liab hla yog ua los ntawm ob qho tib si hluav taws xob thiab tshuaj. Nws yog ib qho tseem ceeb kom paub cov qauv ntawm ib tug neuron, vim nws yog ib tug sib txawv ntawm tes los ntawm lwm cov hlwb pom nyob rau hauv cov tsiaj.
Muaj lub cev lub cev hu ua soma, uas muaj Nissl's granules, dais lub nucleus hauv nruab nrab, thiab dendrites ntawm ib sab. Feem ntau, cov axon pib ntawm qhov kawg ntawm cov dendrites, thiab cov axon yog cov qauv ntev thiab nyias nyias qee zaum them nrog myelin sheaths nrog Schwann hlwb hauv nruab nrab. Thaum kawg ntawm lub axon, muaj lwm cov ceg ntoo uas muaj zog heev dendrites tam sim no. Lub teeb liab tau dhau los ntawm axon raws li hluav taws xob mem tes, uas tau ua kom yooj yim los ntawm kev tsim hluav taws xob gradients los ntawm intracellular thiab extracellular ion twj tso kua mis ntawm sodium, potassium, calcium, thiab chloride. Cov teeb liab tau dhau los ntawm ib qho neuron mus rau lwm qhov ntawm cov tshuaj siv hluav taws xob synapses. Neural networks txuas neurons nrog ib leeg thiab cov ntaub so ntswg. Nws yog ib qho tseem ceeb kom paub tias cov axons npog nrog myelin sheaths xa cov paj hlwb ntawm tus nqi siab dua li qhov qub.
Neuroglia
Neuroglia feem ntau hu ua Glial hlwb lossis qee zaum ua glia. Cov hlwb uas tsis yog-neuron ntawm lub paj hlwb yog qhov tseem ceeb los tswj cov homeostasis thiab tsim myelin. Neuroglia kuj tseem ceeb heev rau kev tiv thaiv cov neurones hauv lub hlwb, thiab yuav luag tib cov xov tooj ntawm cov neuroglia raws li cov xov tooj ntawm cov hlwb hauv tib neeg lub hlwb.
Cov qauv ntawm lub xovtooj ntawm no zoo li kab laug sab lossis tus ntses ntses, tab sis tsis muaj axon li hauv neurons. Cov kws tshawb fawb tau txheeb xyuas plaub lub luag haujlwm tseem ceeb uas cov hlwb glial yog lub luag haujlwm suav nrog kev khaws cov neurons ntawm qhov chaw zoo, muab cov pa oxygen thiab cov as-ham rau cov neurons, muab cov rwb thaiv tsev kom tsis txhob luv luv nrog lwm cov neurons, thiab tiv thaiv cov neurons raug tawm tsam los ntawm cov kab mob. Tsis tas li ntawd, nws ntseeg tau tias glial hlwb ua lub luag haujlwm hauv neurotransmission tab sis tsis muaj kev xav txog tam sim no. Ib qho ntawm cov yam ntxwv tseem ceeb ntawm neuroglia yog qhov muaj peev xwm ua kom muaj kev faib tawm ntawm tes nrog hnub nyoog. Thaum cov haujlwm tseem ceeb no tau txiav txim siab, nws yog qhov tseeb tias cov hlwb neuroglia ua lub luag haujlwm tseem ceeb hauv lub paj hlwb, cov tsis tau nquag tham nrog tib neeg.
Dab tsi yog qhov txawv ntawm Neurons thiab Neuroglia?
• Neurons yog cov txheej txheem thiab kev ua haujlwm ntawm lub paj hlwb whereas neuroglia yog cov hlwb txhawb nqa.
• Neurons hla cov hlab ntsha hauv daim ntawv ntawm hluav taws xob thiab tshuaj lom neeg tab sis neuroglia tsis dhau cov pulses.
• Neurons muaj Nissl's granules tab sis tsis nyob hauv Neuroglia.
• Neuron muaj axon tab sis, tsis nyob hauv neuroglia.
• Neuroglia tsim myelin tab sis cov no tam sim no thiab ua haujlwm hauv axon ntawm neurons.
• Neuroglia tsim cov khoom ntim ntawm cov paj hlwb hauv lub hlwb thiab qaum qaum thiab tab sis tsis yog cov neurons.
• Neuroglia muaj peev xwm dhau los ntawm kev faib tawm ntawm tes nrog lub hnub nyoog, tab sis feem ntau ntawm cov neurons khaws cia rau hauv daim ntawv qub kom txog thaum tus tsiaj tuag vim cov tsis tuaj yeem txuas ntxiv.
