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General visceral afferent fibers
	Scheme showing structure of a typical spinal nerve.; 1. Somatic efferent.; 2. Somatic afferent.; 3,4,5. Sympathetic efferent.; 6,7. Parasympathetic afferent.
Gray's	subject #190 849

The general visceral afferent fibers (GVA, or parasympathetic afferent fibers), conduct sensory impulses from the viscera through the rami communicantes and posterior roots to the spinal cord.

They are probably limited to the white rami connected with the spinal nerves in two groups, viz., the first thoracic to the second or third lumbar and the second sacral to the fourth sacral nerves.

Examples of nerves containing GVA fibers include the glossopharyngeal nerve and the vagus nerve.^[1]

[edit] See also

Afferent nerve

[edit] References

^ Mehta, Samir et al. Step-Up: A High-Yield, Systems-Based Review for the USMLE Step 1. Baltimore, MD: LWW, 2003.

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

[edit] References

^ Mehta, Samir et al. Step-Up: A High-Yield, Systems-Based Review for the USMLE Step 1. Baltimore, MD: LWW, 2003.

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[0] Mehta, Samir et al. Step-Up: A High-Yield, Systems-Based Review for the USMLE Step 1. Baltimore, MD: LWW, 2003.

[0] Mehta, Samir et al. Step-Up: A High-Yield, Systems-Based Review for the USMLE Step 1. Baltimore, MD: LWW, 2003.

[1]