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White & Gray Rami: Anatomy, Fibers & Nervous System Insights
Chapter 14, Problem 7(choose chapter or problem)
Describe the anatomical relationship of the white and gray rami communicantes to the spinal nerve, and indicate the kind of fibers found in each ramus type.
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QUESTION:
Describe the anatomical relationship of the white and gray rami communicantes to the spinal nerve, and indicate the kind of fibers found in each ramus type.
ANSWER:Step 1 of 2
The thoracic and the first two lumbar spinal nerves contribute white ramus communicantes to the adjoining sympathetic ganglion. The white rami are myelinated. They extend from T1-L2. They contain preganglionic sympathetic nerve fibers and the sensory afferent fibers from the viscera. After entering the sympathetic trunk, these preganglionic nerve fibers synapse at the same level or travel down in the sympathetic trunk and come to the exact spinal level of their action.
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White & Gray Rami: Anatomy, Fibers & Nervous System Insights
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Explore the anatomy of white and gray rami communicantes, their ties to spinal nerves, and the distinct fibers in each ramus. Learn how the myelinated fibers of white rami differ from the unmyelinated fibers in gray rami. Gain a deeper understanding of our nervous system's complexity through these intricate relationships.