====== Fiber ====== Bundles of [[axon]]s within the [[brain]], called fibers, can be categorized by their function into: [[Association fiber]]s. [[Optical fiber]]. [[Projection fiber]]s [[Commissural fiber]]s. Association fibers are bundles of [[axon]]s within the brain that unite different parts of the same cerebral hemisphere. The association fibers unite different parts of the same cerebral hemisphere, and are of two kinds: those connecting adjacent gyri, short association fibers; those passing between more distant parts, long association fibers. see [[Fiber tract]]. ---- see [[Nanofibre]]s. ---- [[Optical fiber]] ---- [[White matter fiber]] ----