conduction velocity

Conduction velocity refers to the speed at which a nerve impulse travels along a nerve fiber. This electrical signal, an action potential, is generated by the movement of ions across the cell membrane through protein structures called ion channels.12

Several factors influence conduction velocity:
* Nerve fiber diameter: Larger diameter fibers conduct impulses faster.1
* Temperature: Higher temperatures increase conduction velocity, while lower temperatures decrease it.1
* Myelination: Nerve fibers covered in a myelin sheath conduct impulses more rapidly through a process called saltatory conduction, where the impulse "jumps" between unmyelinated gaps called nodes of Ranvier.1

The speed of conduction is crucial for the nervous system's ability to process information and coordinate bodily functions, such as muscle contraction and secretion.12