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Doctor insights on: Causes Of Upper Motor Neuron Lesion

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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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Dr. Scott Bolhack
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Wounds (Definition)

A wound is a condition in which a person has some trauma to part of his body in which the surface of the skin or some other organ has been broken open. Wounds include clean cuts, jagged cuts, avulsions (ripping away) of ...Read more


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What are the symptoms and signs of the upper motor neuron lesion (cortex, internal capsule, brainstem, spinal cord) ?

What are the symptoms and signs of the upper motor neuron lesion (cortex, internal capsule, brainstem, spinal cord) ?

Variable, but: Typical results of a stroke affecting brainstem and rostral structures, could see focal weakness over unilateral arm and leg, with possible problem with speech. Spinal cord smaller area and maybe both legs and less commonly unilateral arm and leg. ...Read more

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How to diagnose upper motor neuron lesion in patient with amputated four limbs?

How to diagnose upper motor neuron lesion in patient with amputated four limbs?

Neurologist: The physical exam findings will be more difficult to see, but a neurologist will be able to examine the patient and might elect to do testing such as an EMG which tests the conduction of the nerves. ...Read more

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Paralyzis and hyperalgesia in one limb initiated 2 weeks after scoliosis surgery. sphincter incont Clonus. Spasticity. upper motor neuron lesion? why?

Paralyzis and hyperalgesia in one limb initiated 2 weeks after scoliosis surgery. sphincter incont Clonus. Spasticity. upper motor neuron lesion? why?

Postop complication: One has to worry about a delayed postoperative complication-significant!!!! Need to see operating surgeon . Potential causes would be hematoma(blood) compressing spinal cord or even a spinal cord lesion remote from operative site ...Read more

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Paralyzis in one limb initiated 2 weeks post scoliosis surgery. clonus spasms and dorsal back pain. upper motor neuron lesion? why? Mri and CT normal.

Paralyzis in one limb initiated 2 weeks post scoliosis surgery. clonus spasms and dorsal back pain. upper motor neuron lesion? why? Mri and CT normal.

Ct/MRI of what?: Was the "normal" MRI and ct before or after surgery and were those procedures done of the entire spine-including the cervical spine ? Highly recommend returning to operating surgeon and neurologist ...Read more

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What is the different between upper and lower motor neuron lesions?

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 cause the impairment of neurons in Parkinson's disease?

What cause the impairment of neurons in Parkinson's disease?

Unknown: In the etiology of this disease toxic substances (like heavy metals, specific chemicals) infectious e.g. Viral) genetic and environmental factors have been implicated but no definite theory exists. ...Read more

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Can caffeine pills cause neurotxicity (neuron death)?

Can caffeine pills cause neurotxicity (neuron death)?

Maybe, if...: ... you're a lab rat being given huge doses. No evidence caffeine is "neurotoxic" in us. "Neurotoxicity" used as you are using it is like saying your car has "engine trouble": It's meaningless without a specific definition. Which nerves? We have a lot of different kinds. Timeline? Permanent or temporary? What is specific pathology? There are all kinds of qualifiers. ...Read more

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What are people with ALS missing that causes the motor neurons to shrink?

What are people with ALS missing that causes the motor neurons to shrink?

Don't know cause: But 10% of all pts with ALS, have a familial form where 25% of these folks show mutations in the gene encoding copper/zinc superoxide dismutase. ...Read more

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Could strong antipsychotics cause neurons damage and result in demyelinating disease?

Could strong antipsychotics cause neurons damage and result in demyelinating disease?

Antipsychotics: Demyelinating disease is generally autoimmune in nature -- different from the effects of antipsychotic medications. In fact some research indicates that quetiapine may protect against demyelination. http://www.plosone.org/article/info%3adoi%2f10.1371%2fjournal.pone.0042746 nevertheless, long-term use of some antipsychotic agents can affect neuronal function -- just differently. ...Read more

Neuron (Definition)

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