Neurofilaments (NF) yog cais raws li hom IV intermediate filaments pom hauv cytoplasm ntawm neurons Lawv yog cov protein polymers ntsuas 10 nm inch thiab ntau micrometers ntev. Ua ke nrog microtubules (~ 25 nm) thiab microfilaments (7 nm), lawv tsim cov neuronal cytoskeleton.
Dab tsi yog txoj haujlwm ntawm neurofilament?
Lub luag haujlwm tseem ceeb ntawm cov neurofilaments yog hauv kev saib xyuas thiab kev txhawb nqa ntawm cytoskeleton Neurofilaments uas yog phosphorylated raug thauj mus rau hauv axon, uas lawv tuav qhov loj thiab caliber ntawm axon.. Neurofilaments uas tsis muaj phosphorylated nyob hauv lub cev ntawm tes ua haujlwm rau lawv.
Axoplasm yog dab tsi?
Axoplasm yog ib qho tseem ceeb rau tag nrho cov kev ua haujlwm ntawm cov neurons hauv kev nthuav tawm cov peev xwm los ntawm axon. Tus nqi ntawm axoplasm hauv axon yog qhov tseem ceeb rau cov cable zoo li cov khoom ntawm axon hauv txoj kev xav cable.
anterograde thauj yog dab tsi?
Anterograde (tseem hu ua "orthograde") thauj yog txav ntawm cov molecules / organelles sab nraud, los ntawm lub cev ntawm tes (tseem hu ua soma) mus rau synapse lossis cell membrane Lub zog anterograde ntawm ib tus neeg cov khoom thauj (hauv cov hlwv thauj khoom) ntawm ob qho tib si nrawm thiab qeeb raws cov microtubule yog kho los ntawm kinesins.
Dendrites yog dab tsi?
Ib tug dendrite (ntoo ceg) yog qhov twg cov neuron tau txais cov tswv yim los ntawm lwm lub hlwb Dendrite ceg thaum lawv txav mus rau lawv cov lus qhia, ib yam li cov ceg ntoo ua, thiab lawv txawm muaj nplooj. -zoo li cov qauv ntawm lawv hu ua spines. … Muaj ntau hom neurons, ob qho tib si hauv lub hlwb thiab qaum qaum.
