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Doctor insights on: Neuron

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Neuron (Overview)

A neuron is a specialized cell that conducts impulses within the nervous system. It is made up of a cell body and processes including the axon and dendrites.


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What are the tests used to diagnose upper motor neuron disorders?

What are the tests used to diagnose upper motor neuron disorders?

Clinical is the best: You've just stated a few hundred different disease processes that involve "UMN disorders." Which one did you have in mind? The best way to a diagnosis is a well trained neurologist who likes to examine their patients, judiciously use tests to help support their clinical thinking or help reorient them if necessary and not make snap decisions. Do you know anybody like that? That's who needs to see U ...Read more

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Dr. Rashed Hasan
28 years in practice
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Neuron (Overview)

A neuron is a specialized cell that conducts impulses within the nervous system. It is made up of a cell body and processes including the axon and dendrites.


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What would happen if you somehow fused your neurons together?

What would happen if you somehow fused your neurons together?

Are you worried?: The separation of neurons by synapses is what makes it possible for the brain to do what it does, namely, think and control muscles. If you fused them all together your skull would contain a gigantic hard-boiled egg. Why do you ask? Are you afraid that it could happen or has happened to you? ...Read more

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Dr. Rashed Hasan
28 years in practice
538K people helped
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What is the definition or description of: neuron?

What is the definition or description of: neuron?

Nerve Cell: A neuron is a specialized cell that conducts impulses within the nervous system. It is made up of a cell body and processes including the axon and dendrites. ...Read more

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What are the last stages of motor neurons disease?

What are the last stages of motor neurons disease?

Gruesome: Patient needs assistance with nutrition due to inability to swallow, and chokes on secretions, so a peg feeding tube is placed. Cannot breathe so a tracheostomy is employed. Infections overwhelm the system, and diffuse weakness or even paralysis from the muscle atrophy is present. But most patients intact cognitively and appreciate the catastrophe. Rather horrendous situation. ...Read more

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Why are motor neuron diseases so dangerous?

No cure.: There truly is no effective treatment, and often, the bulbar musculature is afflicted causing both swallowing and breathing issues, which promotes early demise. Main issue, in most cases, is the preservation cognitive function, allowing patient to witness the devastation and anticipate problems. (variant associated with front-temporal dementia may be less intense) bad disease. ...Read more

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Dr. Rashed Hasan
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28 years in practice
538K people helped
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What is the different between upper and lower motor neuron lesions?

Lesion Localization: The upper motor neurons also called “Cortical Motor Neurons” are located in the motor cortex of the brain. The the spinal motor neurons are the lower motor neurons. Signs of UMN is a stiffness and resistance to movement. Signs of LMN damage include weakness, muscle atrophy. Hope it helps. ...Read more

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What is motor neuron disease?

Motor neuron disease: Motor neuron disease is a group of poorly understood degenerative conditions of the nervous system. The one known most commonly is amyotrophic lateral sclerosis, better known as lou gehrig's disease. The disease causes the nerves supplying muscles in the spinal cord to die off gradually causing progressive weakness in the limbs and the face including swallowing muscles.There is no cure at this time. ...Read more

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How does the upper notor neuron lesion cause the babinski sign?

How does the upper notor neuron lesion cause the babinski sign?

Higher brain centers: Babies normally have babinski responses but lose it as they mature. The response remains deep in the brain and spinal cord but is suppressed by the higher brain centers. If the higher brain centers become damaged, these primitive responses return because they are no longer being suppressed. Hope this helps to simplify the prior excellent answer. ...Read more

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How come I have motor neuron disease, but nobody else in the family has it?

Most are nonfamilial: While there are some cases of motor neuron disease that run in families, the majority of cases occur spontaneously without any clear genetic cause. Hopefully, with time and continued research, we will be able to find the nongenetic reasons that cause some people to develop the disease while others do not. ...Read more

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Dr. Rashed Hasan
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