Question
Function of the Posterior Root
The posterior root of the spinal nerve contains
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Ask by Coles Martinez. in the United States
Mar 21,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
The posterior root contains only sensory fibers.
Solution
The posterior root of the spinal nerve contains:
- Only sensory fibers.
The posterior (dorsal) root is responsible for carrying sensory information from the body to the spinal cord. It does not contain motor fibers, which are found in the anterior (ventral) root.
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Simplify this solution Extra Insights
The posterior root of the spinal nerve contains only sensory fibers, which are responsible for transmitting sensory information from the body to the spinal cord. These fibers carry crucial data about touch, pain, temperature, and proprioception, allowing the central nervous system to process and respond to external stimuli effectively.
In real-world applications, understanding the function of the posterior root is essential in diagnosing sensory disorders. For example, damage to this part of the nerve can lead to conditions such as neuropathy, where individuals might experience abnormal sensations like tingling or numbness, showcasing the importance of sensory pathways in maintaining healthy body function.
