However, Waxman's group have noted that conduction can occur in premyel inated optic nerve axons where the sodium channel density is also low (mly 2/)lm2),21 raising the possibility that even some freshly demyelinated axons may be able to conduct.19.2J This is an interesting ...
(ON) were, naturally, coloured by the viewpoints of their teachers: ‘Their (the optic nerves) anatomical disposition ‘place it beyond all question that they are the proper conductors of visual impressions to the sensorium’ and ‘ from this chiasma, the optic nerves spring, and diverge as ...
and choroid plexus epithelial cells (Jacob et al.2020; Pellegrini et al.2020), suggesting that replication in the brain could occur in non-neuronal cells and contribute to neuropathology. In post-mortem human brain tissues, studies have identified viral RNA and protein associated...
scientific correspondence Myelin-like sheaths in copepod axons Copepods, the small planktonic crus- taceans that are the most abundant metazoans in the oceans, are so successful partly because they have an escape response that accelerates them to 200 body lengths per second within milliseconds1–3....
nerves, SCs select specific axons in a process called radial sorting, whereby they are thought to extend exploratory processes into a bundle of unmyelinated axons and select just one axon, >1 μm in diameter, for myelination. Upon completion of radial sorting, promyelinating SCs are ...