Parallel Fibers

Parallel fibers are long, thin nerve fibers in the cerebellum, a part of the brain responsible for coordination and movement. They run parallel to each other across a layer of cells called the granule cell layer. These fibers carry information from various sources, like sensory inputs and motor commands, and connect to specialized cells called Purkinje cells. By transmitting this information, parallel fibers help the cerebellum coordinate smooth, accurate movements and maintain balance, playing a crucial role in motor learning and timing.