A Fiber

《英文msh詞典》A Fiber
[入口詞] A Fiber
[主題詞] Nerve Fibers,Myelinated
[英文釋義] A class of nerve fibers as defined by their structure,specifically the nerve sheath arrangement. The AXONS of the myelinated nerve fibers are completely encased in a MYELIN SHEATH. They are fibers of relatively large and varied diameters. Their NEURAL CONDUCTION rates are faster than those of the unmyelinated nerve fibers (NERVE FIBERS,UNMYELINATED). Myelinated nerve fibers are present in somatic and autonomic nerves.