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Related to efferent fibers: Afferent fibers
those fibers conveying impulses to effector tissues (smooth, cardiac, or striated muscle, or glands) in the periphery; those fibers exiting a specific cell group (that is, efferent fibers of the basilar pons), used in reference to a cell group.
ef·fer·ent fi·bers(efĕr-ĕnt fībĕrz)
Those conveying impulses peripheral to effector tissues (smooth, cardiac, or striated muscle, or glands).