Definition
An efferent fiber is a nerve fiber that carries signals away from the central nervous system (CNS) to the periphery (muscles, glands, organs). It is synonymous with a motor fiber. These fibers are responsible for transmitting commands that result in actions such as muscle contraction or gland secretion. They are crucial for controlling body functions. Efferent fibers form the pathways for outgoing nerve signals. Unlike afferent fibers, efferent fibers transmit information outward.