: nplua nuj proteinaceous fibril uas pom muaj nyob rau hauv cytoplasm (raws li ntawm ib tug neuron los yog ib tug paramecium) thiab muaj peev xwm ua excitation.
Neurofibril ua dab tsi?
neurofibril Ib qho ntawm cov fibers hauv cytoplasm ntawm paj hlwb axon. Neurofibrils suav nrog neurofilaments thiab neurotubules, microtubules uas ua si lub luag haujlwm hauv kev thauj cov protein thiab lwm yam khoom hauv cytoplasm.
Neurofibril node yog dab tsi?
A constriction in cov myelin sheath, tshwm sim ntawm qhov sib txawv raws qhov ntev ntawm cov paj hlwb.
Dab tsi yog neuro fibrils?
Neurofibrils tau pom zoo tshaj plaws hauv cov neurons loj, tab sis muaj nyob rau hauv yuav luag tag nrho (Fig. 21G). Nrog rau cov hlau-impregnation, lawv nyias nyias, interlacing, silver-hlub threads (txog 2 μm inch) khiav los ntawm cytoplasm thiab txuas mus rau hauv dendrites thiab axon.
Neurofibril nodes nyob qhov twg?
nodes ntawm Ranvier
Nov qhov khoob ntawm qhov kawg ntawm ntu ntawm myelin uas insulate ib leeg hlab ntsha axons. (Louis Antoine Ranvier, 1835–1922, Fab Kis tus kws kho mob).
