Functional Components Q General somatic efferent fibers(GSE): innervate skeletal muscles of eye and tongue Special visceral efferent fibers(SVE): transmit motor impulses from the brain to skeletal muscles derived from brachial (gill) arches of embryo. These include the muscles of mastication, facial expression and swallowing Q General visceral efferent fibers(GVE: transmit motor impulses from the general visceral motor nuclei and relayed in parasympathetic ganglions The postganglionic fibers supply cardiac muscles smooth muscles and glandsFunctional Components General somatic efferent fibers (GSE): innervate skeletal muscles of eye and tongue Special visceral efferent fibers (SVE): transmit motor impulses from the brain to skeletal muscles derived from brachial (gill) arches of embryo.These include the muscles of mastication, facial expression and swallowing General visceral efferent fibers (GVE): transmit motor impulses from the general visceral motor nuclei and relayed in parasympathetic ganglions. The postganglionic fibers supply cardiac muscles ， smooth muscles and glands