The general visceral efferent fibers (GVE or post ganglionic sympathetic efferent fibers), probably arise from cells in the lateral column or the base of the anterior column and emerge through the anterior roots and white rami communicantes.

These are preganglionic fibers

Preganglionic fibers

In the autonomic nervous system, fibers from the CNS to the ganglion are known as preganglionic fibers.All preganglionic fibers, whether they are in the sympathetic division or in the parasympathetic division, are cholinergic .Sympathetic preganglionic fibers tend to be shorter than parasympathetic...

 which end in various sympathetic ganglia from which postganglionic fibers conduct the motor impulses to the smooth muscles of the viscera and vessels and secretory impulses to the glands.

The cell bodies of GVE fibers are present from the first thoracic to the second lumbar spinal levels (ie, T1-L2).

The nerves containing GVE fibers include the oculomotor nerve

Oculomotor nerve

The oculomotor nerve is the 3rd of 12 paired cranial nerves. It enters the orbit via the superior orbital fissure and controls most of the eye's movements, including constriction of the pupil and maintaining an open eyelid by innervating the Levator palpebrae superiors muscle. The optic nerve is...

, the facial nerve

Facial nerve

The facial nerve is the seventh of twelve paired cranial nerves. It emerges from the brainstem between the pons and the medulla, and controls the muscles of facial expression, and functions in the conveyance of taste sensations from the anterior two-thirds of the tongue and oral cavity...

, the glossopharyngeal nerve

Glossopharyngeal nerve

The glossopharyngeal nerve is the ninth of twelve pairs of cranial nerves . It exits the brainstem out from the sides of the upper medulla, just rostral to the vagus nerve...

, and the vagus nerve

Vagus nerve

The vagus nerve , also called pneumogastric nerve or cranial nerve X, is the tenth of twelve paired cranial nerves...

.

See also

• Nerve fiber
  Nerve fiber
  A nerve fiber is a threadlike extension of a nerve cell and consists of an axon and myelin sheath in the nervous system. There are nerve fibers in the central nervous system and peripheral nervous system. A nerve fiber may be myelinated and/or unmyelinated. In the central nervous system , myelin...
  
  
• Preganglionic fibers
  Preganglionic fibers
  In the autonomic nervous system, fibers from the CNS to the ganglion are known as preganglionic fibers.All preganglionic fibers, whether they are in the sympathetic division or in the parasympathetic division, are cholinergic .Sympathetic preganglionic fibers tend to be shorter than parasympathetic...
  
  
• Efferent nerve
  Efferent nerve
  In the nervous system, efferent nerves, otherwise known as motor or effector neurons, carry nerve impulses away from the central nervous system to effectors such as muscles or glands...