Are all axons covered with myelin? No; they can be either myelinated or unmyelinated. Myelinated axons are ensheathed along their entire length. The axon caliber (diameter) in mammalian PNS ranges ...

Distribution of Ranvier nodes along myelinated axons is a critical determinant of conduction velocity, significantly influencing spike arrival timing and hence neural circuit function. The patterns of ...

Myelinated axons are present in sensory neurons and motor neurons, but not all sensory and motor neurons are myelinated. Most ...

Based on the findings previously collected by Bellen and other researchers, Nave and his colleagues hypothesized that myelin, a protective fatty layer that encloses axons (i.e., nerve fibers) in ...

Tsai explains via email that past fMRI studies have linked the gene variant to reduced white matter, which is mainly composed of myelinated axons. She adds that the work of her and her colleagues ...