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Doctor insights on: Function Of Dorsal Root Spinal Nerves

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Dr. Chintan Sampat
Board Certified, Orthopedic Spine Surgery
13 years in practice
195K people helped
1

1
Can you tell me the function of the dorsal root of the spinal nerve?

Dr. Chintan Sampat
Board Certified, Orthopedic Spine Surgery
13 years in practice
195K people helped
Can you tell me the function of the dorsal root of the spinal nerve?

Lets you feel things: The nerve root has 2 "ganglions". The dorsal root is on the posterior side of the nerve (closer to your back) and carries the fibers that allow you to feel things in your extremities (for example: pain, temperature, vibration). The information is transmitted to your brain so you understand what type of sensation is being encountered by the extremity. ...Read more

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Dr. Warren Strudwick
Board Certified
25 years in practice
361K people helped
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Dr. Warren Strudwick
Board Certified
25 years in practice
361K people helped
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Dr. Michael Bolesta
Board Certified, Orthopedic Surgery
35 years in practice
2M people helped
2

2
What do swellings on the dorsal roots of the spinal nerves signify?

Dr. Michael Bolesta
Board Certified, Orthopedic Surgery
35 years in practice
2M people helped
What do swellings on the dorsal roots of the spinal nerves signify?

Nerve cell bodies: The dorsal root ganglion (the enlargement) is the place in the nerve where the cell bodies of feeling nerves (sensory nerves) are located. ...Read more

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Dr. Warren Strudwick
Board Certified
25 years in practice
361K people helped
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Dr. Warren Strudwick
Board Certified
25 years in practice
361K people helped
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Dr. Michael Bolesta
Board Certified, Orthopedic Surgery
35 years in practice
2M people helped
3

3
What will happen if an injury cuts the dorsal root of a spinal nerve that carries feelings of pain?

Dr. Michael Bolesta
Board Certified, Orthopedic Surgery
35 years in practice
2M people helped
What will happen if an injury cuts the dorsal root of a spinal nerve that carries feelings of pain?

Numbness: The dorsal (posterior, toward the back) root carries sensation nerve fibers: feeling of light touch, vibration, sense of position (movement or where the arm or leg or joint is), pain. However, there is much overlap between the area serves by a single nerve, so there may not be total loss of sensation, depending on how the person is "wired.". ...Read more

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Dr. Thomas Dowling
Board Certified, Orthopedic Spine Surgery
35 years in practice
15M people helped
4

4
What happens if the dorsal root of a spinal nerve is damaged?

Dr. Thomas Dowling
Board Certified, Orthopedic Spine Surgery
35 years in practice
15M people helped
What happens if the dorsal root of a spinal nerve is damaged?

It may create: Neuropathic pain as this is in the vicinity of the dorsal root ganglion and may affect that nerve's functional distribution as well depending on what type of overlap or cross innervation that may be in that individual. ...Read more

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Dr. Warren Strudwick
Board Certified
25 years in practice
361K people helped
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Dr. Marius Frasie
Board Certified, Internal Medicine
21 years in practice
1M people helped
5
Dr. Ki-Hon Lin
Board Certified, Orthopedic Surgery
20 years in practice
1M people helped
6

6
What would happen if there was a destruction of the spinal nerve's dorsal root ganglion?

Dr. Ki-Hon Lin
Board Certified, Orthopedic Surgery
20 years in practice
1M people helped

Loss of sensation: Destruction of the dorsal root ganglion would interrupt the sensory pathway of that particular nerve - therefore, one would be expected to have numbness in the distribution of that spinal nerve. ...Read more

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Dr. Mark Fisher
Board Certified, Neurology
29 years in practice
1M people helped
7

7
What is dorsal ramus of the spinal nerve?

Dr. Mark Fisher
Board Certified, Neurology
29 years in practice
1M people helped
What is dorsal ramus of the spinal nerve?

A homework question?: You're 34 so I'm guessing it's not a homework question. I just did a web search using your question & got a great profusion of hits. Don't take offense, but HealthTap docs do this to apply medical reasoning to posters' questions, not so they can regurgitate facts that anyone, physician or nonphysician, can look up for themselves. ...Read more

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Dr. Mark Weston
Board Certified, Orthopedic Spine Surgery
26 years in practice
5M people helped
8

8
What are the spinal, cervical and dorsal discs made of?

Dr. Mark Weston
Board Certified, Orthopedic Spine Surgery
26 years in practice
5M people helped
What are the spinal, cervical and dorsal discs made of?

Cartilage: Cartilage type1 and type 2 cartilage it looks like crab meat and gristle when taling them out surgically. ...Read more

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Dr. Qamar Khan
Board Certified, Pain Management
12 years in practice
7M people helped
9

9
Is surgery needed for indentation of the ventral thecal sac and spinal cord at t8-t9? Bcos dorsal central degenerative intervertebral disc protrusion

Dr. Qamar Khan
Board Certified, Pain Management
12 years in practice
7M people helped
Is surgery needed for indentation of the ventral thecal sac and spinal cord at t8-t9?  Bcos dorsal central degenerative intervertebral disc protrusion

Generally No: Typically surgoens do not perform surgery in this area of the spine as the risk to vital organs is too great. ...Read more

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Dr. Kirk Banerian
Board Certified, Radiology
9K people helped
10

10
What specific imaging test takes pics of the nerves coming out of (exiting) the spinal cord? I believe their called spinal nerve roots, not sure.

Dr. Kirk Banerian
Board Certified, Radiology
9K people helped
What specific imaging test takes pics of the nerves coming out of (exiting) the spinal cord? I believe their called spinal nerve roots, not sure.

MRI (best) or CT: An MRI of the spine is the most accurate imaging test to evaluate the spinal cord and the nerve roots exiting the spinal canal. This is most often done without an injection of contrast, however there may be an indication for you to receive an injection of contrast with the MRI. As a Neuroradiologist I often discuss with and advise the referring physician regarding the need for contrast. ...Read more

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Dr. Warren Strudwick
Board Certified,
25 years in practice
361K people helped
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