White ramus communicans

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White ramus communicans
Scheme showing structure of a typical spinal nerve. 1. Somatic efferent. 2. Somatic afferent. 3,4,5. Sympathetic efferent. 6,7. Sympathetic afferent.
Latin	rami communicantes albi
Gray's	subject #208 920
System
MeSH	[1]
Diagram of the course and branches of a typical intercostal nerve. (Rami communicantes labeled at center.)

The thoracic, and the first and second lumbar nerves each contribute a branch, white ramus communicans to the adjoining sympathetic ganglion.

They contain myelinated preganglionic sympathetic fibers (GVE and GVA).

Additional images

Deep and superficial dissection of the lumbar plexus.

Thoracic portion of the sympathetic trunk.

See also

• Gray ramus communicans

External links

• Dictionary at eMedicine white+rami+communicantes
• Atlas of anatomy at UMich n3a6p1 - "Autonomic Connections of the Spinal Cord"
• Overview and diagram

tl:White ramus communicans

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

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