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Doctor insights on: Sensory Nerve Action Potential

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Is it possible to sever sensory nerves?

Is it possible to sever sensory nerves?

Yes: Traumatic, penetrating injuries may sever nerves - both motor and sensory. ...Read more

Nerve (Definition)

The brain and spinal cord communicates with what is occurring in the internal organs and limbs by nerve fibers where are like electrical wires with insulation (myelin) and the "copper" (axon). Within brain and spinal cord these nerves connect to other nerves via synapses on both axons and dendrites. A nerve can carry information regarding sensations, and ...Read more


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Is it weird to feel like someone is poking you but no one is? Could it be something to do with your nerves or sensory receptors on the body?

Is it weird to feel like someone is poking you but no one is? Could it be something to do with your nerves or sensory receptors on the body?

Possibly: Symptoms like these are best deterimed by a thorough evaluation by your physician. Based on his/her findings, a treatment plan can be developed to help you. ...Read more

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Which of the knee joint structures are not supplied by a sensory nerve?!

Which of the knee joint structures are not supplied by a sensory nerve?!

Most: Ligaments have nerves that assess tension and position, subchondral bone has sensory nerves, peripheral meniscus, and synovium are all pain sources. The articulate cartilage itself has no nerves. ...Read more

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If the body can attack itself, and nerves and the sensory nervous system was involved would one be able to feel the process of that attack?

Symptoms: There are conditions where the immune system can attack the nervous system, including the sensory nerves. Technically you might not feel the attack, but inflammation caused could be painful. If the sensory system is damaged, you will feel the result, at least, the lack of normal sensation. Sometimes that is painful, or like a tight, numb sensation. ...Read more

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What causes sensory nerve damage, what could help repair it?

What causes sensory nerve damage, what could help repair it?

Not so simple: Need to provide diagnosis of cause so that the actual pathology can be addressed. If you possess a true sensory small fibre neuropathy, this does need confirmation via a skin punch biopsy. You could have an immune disorder, amyloidosis, diabetes, b-12 deficiencies. Repair maybe possible, and medical foods may be useful.. A few neurologists deal with these problems and can guide you. ...Read more

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If a sensory nerve or motor nerve is cut , can the doctor re fix it completely ?

If a sensory nerve or motor nerve is cut , can the doctor re fix it completely ?

Nerves do not: Usually grow back but once in a while a peripheral sensory nerve will regenerate. When a nerve is cut we can only hope it will grow back. As for motor neurons - these really do not regenerate but we are trying to use stem cells and other experimental ideas to cause them to regenerate. You can probably do a search on this - spinal cord nerve regeneration as the search terms. ...Read more

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If the motoric (but not sensory) part of the sciatic nerve is compressed, what would be the typical progression of symptoms?

If the motoric (but not sensory) part of the sciatic nerve is compressed, what would be the typical progression of symptoms?

Weakness of ankle: In clinical state that is hard to separate the sensory from motor. Motor effects of the L5 and s1 roots are generally weakness of the ankle and foot. ...Read more

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Can nerve discorder like sensory discorder of tickling, itching, crawling senstaion remain with no diagnose? Can it relegated to Paraneoplastic?

Can nerve discorder like sensory discorder of tickling, itching, crawling senstaion remain with no diagnose? Can it relegated to Paraneoplastic?

Neuropathy: Most cases of neuropathy remain undiagnosed as to their cause. PARANEOPLASTIC disease is a recognized causative factor of neuropathies but unless you have antibody positivity test results or some other really compelling solid clinical suspicion this should be the case then, making that the diagnosis is tenuous at best. ...Read more

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If sensory part of median nerve is dead, will I lose functionality which I still have. And does a dead nerve rot in the body requiring amputation?

Complicated question: The sensory part of a nerve only controls sensation - it feels numb. The motor part (moving muscles) should be intact, so you have functionality (for now). A dead nerve ultimately leads to problems - you don't sense trauma or pressure, so you can repeatedly injure a body part w/o knowing it & the sore can get infected. Over time, chronic infections set in bone, requiring amputation. HealthTap Prim ...Read more

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Would 70-90% sensory loss(radial nerve in wrist) be considered a diability?

Would 70-90% sensory loss(radial nerve in wrist) be considered a diability?

Radial Neuropathy: Sensory loss from the radial nerve is considered an impairment. It is only a disability if it prevents you from being able to do a job or participate in society. Numbness by itself is almost never a disability as it rarely effects function. ...Read more

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What kind of problems can occur from radial nerve surgey? It's the sensory in the forearm.

What kind of problems can occur from radial nerve surgey? It's the sensory in the forearm.

Yes it does supply: Yes radial nerve does supply sensory fibers to part of back of fore arm and hand and extensor muscles. It can entrapped mostly at elbow as it emerges from ' tunnel ' causing tennis elbow like symptoms , some times i humorous in spiral grove , release surgery is relatively safe, or if severed in trauma ( stab wounds ) recovery after repair is slightly better than ulnar nerve ...Read more

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Would a neurotrophic virus cause pain upon uptake into sensory nerves?

Would a neurotrophic virus cause pain upon uptake into sensory nerves?

Yes: Any virus that affects the nervous system may cause nerve pain due to inflammation that develops as a result of its action. ...Read more

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I have small cutaneous sensory axonopathy. With a density of 0 fore epidermal nerve ending. Im very scared. Is this a progressive terminal disease?

Neuropathy: This is a very unlikely to represent a terminal disease. However, work in close contact with your physician to try to find the cause of your neuropathy. ...Read more

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Would 70-90% sensory loss(radial nerve in wrist) be considered having a disability?

Would 70-90% sensory loss(radial nerve in wrist) be considered having a disability?

Probably not: Unless this sensory loss is somehow rendering you disabled, it's not likely. Results of tests, such as nerve conduction studies, do not determine disability. ...Read more

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My emg said i damaged the sensory part of the radial nerve in the forearm! what does the numbers mean on the test? 26 it should be 50 or higher! :(

Conduction velocity: The numbers relate to the speed of conduction of the nerve. There are expected values in the arm (usually above 49). Slowing in an area relates to injury. ...Read more

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I either have mmn or cidp. I get ivig 2 days a month My sensory nerves are getting better but my motor nerves aren't is there additional treatment ?

 I either have mmn or cidp. I get ivig 2 days a month  My sensory nerves  are getting better but my motor nerves aren't is there additional treatment ?

YOU NEED TO KNOW: Points to emphasize: 70% respond to IVIG, it may take many months to stabilize strength, over time may be best to consider additions of Cell-cept or Imuran (azathioprine) to the IVIG, MMN is different from CIDP and needs to be specifically pinned down. If you are not improving, time for a second opinion at a nearby medical school. ...Read more

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What are the symptoms of sensory nerve damage after c section.?

Numbness, tingling: Damage to sensory nerve would present as numbness, tingling or pain to light touch in the area innervated by the affected nerve. There could be also pain, stabbing and/or shooting in nature, sometimes feeling like an electrical schock. If the nerve has some motor function, weakness with certain movements may be present. ...Read more

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Why would a peripheral nerve injury cause loss of both sensory and motor functions?

Why would a peripheral nerve injury cause loss of both sensory and motor functions?

Injury location: Although specific sensory branches go to skin and motor branches go to muscle, the main nerve trunks contain both. These large cables split off smaller branches that contain only sensory or motor nerve cells.

If an injury occurs on the skin, sensantion nearby is affected. If a small motor nerve is injured, nearby muscles are paralyzed. But if a large nerve is injured, both can occur. ...Read more

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Can you have surgery on the sensory part of the radial nerve in the forearm? That is what the emg showed .

Can you have surgery on the sensory part of the radial nerve in the forearm? That is what the emg showed .

Yes you can. : It could be impingement of your radial, median or ulnar nerve or problem with the tendon that cause your symptoms. Take care! ...Read more

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The result my emg {NCS the right and left MIdian nerve showed delay in distal sensory latencies across the wrists as copared ulner nerves}?

Median neuropathy: That usually means that there is damage to the median nerves causing them to not feel sensations properly. The most common causes are carpal tunnel syndrome, diabetes, hypothyroidism, and heavy metal toxicity ...Read more

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I hurt my forearm /elbow 7mth ago just had an emg 2weeks ago it read 26 on the radial sensory nerve! does that mean i'm going to need surgery? Pain

I hurt my forearm /elbow 7mth ago  just had an emg 2weeks ago it read 26 on the radial sensory nerve! does that mean i'm going to need surgery? Pain

Not necessarily: The main reason to have surgery is to release the nerve if your doctor thinks it is pinched. In most cases surgery is not necessary for the nerve to heal. If slowing of the nerve is the only abnormality found, surgery would be the last option after trying physical therapy, medications and other non-invasive modalities. Discuss the test results with your doctor. ...Read more

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How do I fuel and activate my sensory nerve near 5th metacarpal incision ? I have partial numbness on small area of pinky skin, 6 months since surgery

How do I fuel and activate my sensory nerve near 5th metacarpal incision ?
I have partial numbness on small area of pinky skin, 6 months since surgery

U wait & C what-: -happens. There R 3 grades of nerve injury. I=an injured nerve that is crushed but not cut, these usually improve in 4-6 months. II= fibers damaged so bad but the neural sheath is intact. Take longer, some degeneration takes place in the nerve fiber,then regrowth is possible, 6-12 months. III=nerve cut & no chance 2 regrow. Impossible 2 make an incision that protects the very small sensory ones. ...Read more

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If anterior horn spinal nerves are motor, then epidural steroid inj's can only relieve sensory symptoms being injected posteriorly?

If anterior horn spinal nerves are motor, then epidural steroid inj's can only relieve sensory symptoms being injected posteriorly?

Interesting Thought: The plan is for the epidural steroid injection that is done posteriorly (called interlaminar/translaminar epidural injection) to reach the anterior epidural space where both the motor and sensory nerves exit out. Below the level of L2, roughly the spinal cord ends and all nerves exiting from the spine have both sensory/motor components. ...Read more

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Emg shows i damaged to sensory part of the radial nerve in my forearm! it's been this way for 7 months can I tell the ortho to operate on it

Need more info: An EMG shows only the motor changes. If you had a nerve conduction study that showed only sensory changes, then you have to decide if the numbness and pain are enough to warrant a surgery. The radial sensory nerve does not innervate an area of the hand that needs much sensation, so it is probably a question of pain. The surgery carries some risk of nerve damage. ...Read more

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Post surgery for Peroneal tendon sublux, tendons still snap - more painful. Possible to ablate sensory nerve going to tendons to avoid repeat surgery?

Not good idea : While it is theoretically possible to ablate the sensory nerves, that would definitely not be a good idea. These are the nerves that supply sensation to your lateral foot and are important to protect your foot from injury. Better to get problem taken care of, consider a second opinion as well. ...Read more