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 ...

The arrows point to the marked thickening of capillaries walls in the endoneurium. Abnormalities of unmyelinated fibers in severe length-dependent diabetic polyneuropathy. Electron micrograph of a ...

Neurons are cells in the body that are responsible for transmitting electrical signals through the nervous system. Different ...